Tables and Pictographs statistics and probability Data are
Tables and Pictographs (statistics and probability) Data are factual information. By analyzing data we can make predictions, draw conclusions, and solve problems. To be useful, data must be organized in some way. A table organizes data into columns and rows. Labels help us understand these columns and tables. Sometimes data is put into picture (pictograph) form. Always read the “key” to help you understand the data.
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 1. How many books were checked out of the South and the West Branch combined?
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 1. How many books were checked out of the South & the West Branch combined? 4½ + 9 = 13½ symbols, so, 13. 5 x 150 = 2025 books
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West 2. How many more books were checked out of North than South? = 150 books
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 2. How many more books were checked out of North than South? So, 6. 5 - 4. 5 = 2. 0 symbols. Each symbol is 150 books, therefore, 2 x 150 = 300 books were checked out of North than South branch.
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 3. What was the total number of books checked out of all branches that week?
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 3. What was the total number of books checked out of all branches that week? 6½ + 4½ + 9 = 20 total symbols. Each symbol is 150 books, so, 20 x 150 = 3000 books were checked out in total.
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 4. How many more books were checked out at West than North this week?
A city has three public library branches. A librarian kept track of the number of books checked out from each branch in a week. He used the data to create the pictograph. Branch Number of books checked out Key North South West = 150 books 4. How many more books were checked out at West than North this week? 9 symbols - 6½ = 2½ symbols, so 2. 5 x 150 = 375 more books were checked out of West than North.
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 5. If 100, 000 children were surveyed in both years, which category showed the least percentage increase from 2014 to 2018? A. Recognizes all letters B. Counts to 20 or higher C. Writes own name D. Reads, or pretends to read
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 5. If 100, 000 children were surveyed in both years, which category showed the least percentage increase from 2014 to 2018? A. Recognizes all letters B. Counts to 20 or higher C. Writes own name D. Reads, or pretends to read A. Recognizes all letters……………. Changes 11% to 17%, so +6% change B. Counts to 20 or higher……………. Changes 37% to 47%, so +10% change C. Writes own name…………………. Changes 22% to 34%, so +12% change D. Reads, or pretends to read…………. . Changes 66% to 67%, so +15 change (correct)
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 6. A community had 350 three year old children in 2018. If the chart is representative of this community, who many were able to write their own names? A. 34 B. 97 C. 119 D. 134
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 6. A community had 350 three year old children in 2018. If the chart is representative of this community, who many were able to write their own names? A. 34 B. 97 C. 119 D. 134 350 children x 34% is written as 350 x 0. 34 = 119 children (C is correct)
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 7. If this table represents a different community, with 4600 three year old kids, how many could recognize all their letters in 2014?
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 7. If this table represents a different community, with 4600 three year old kids, how many could recognize all their letters in 2014? 4600 children x 11% is written as 4600 x 0. 11 = 506 children
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 8. If this table represents a different community, with just 300 three year old children, how many could count up to at least 20 in the year 2018?
Percent of 3 year old children with school readiness skills for the years 2014 and 2018 2014 2018 Recognizes all letters 11% 17% Counts to 20 or higher 37% 47% Writes own name 22% 34% Reads, or pretends to read 66% 67% 8. If this table represents a different community, with just 300 three year old children, how many could count up to at least 20 in the year 2018? 300 children x 47 % is written as 300 x 0. 47 = 141
Tables and Pictographs - 2 (more statistics and probability)
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM Equals 40 cars 431 PM— 8 PM 1. How many cars were parked from 1201 to 430 PM? A. 220 cars B. 240 cars C. 260 cars D. 160 cars
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM Equals 40 cars 431 PM— 8 PM 1. How many cars were parked from 1201 to 430 PM? A. 220 cars B. 240 cars C. 260 cars D. 160 cars 6. 5 symbols x 40 cars per symbol, 6. 5 x 40 = 260 cars (C is correct)
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM 431 PM— 8 PM 2. How many more cars were parked from 8 AM to noon than after 430 PM? Equals 40 cars
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM 431 PM— 8 PM 2. How many more cars were parked from 8 AM to noon than after 430 PM? 5. 5 symbols— 4 symbols = 1. 5 symbols difference. 1. 5 x 40 = 60 cars more parked early than later. Equals 40 cars
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM 431 PM— 8 PM 3. What was the total number of cars parked all day? Equals 40 cars
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM 431 PM— 8 PM 3. What was the total number of cars parked all day? 15 plus 2 half symbols = 16 symbols 16 x 40 = 640 cars Equals 40 cars
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM Equals 40 cars 431 PM— 8 PM 4. How many more cars were parked from 1201 - 430 than before noon?
Mayfair Parking Garage Daily Averages of Parked Cars by time Period Time of Day Number of cars parked Key 8 AM—Noon 1201 PM— 430 PM Equals 40 cars 431 PM— 8 PM 4. How many more cars were parked from 1201 - 430 than before noon? 6. 5 symbols— 5. 5 symbols = 1. 0 symbols 1 symbol x 40 cars = 40 cars more during 1201 to 430 than before noon.
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 5. On average, how many people per sq mile lived in Bell County in 2010?
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 5. On average, how many people per sq mile lived in Bell County in 2010? 22, 707 ÷ 2, 523 = 9 people per square mile
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 6. On average, how many people per square mile lived in Davis County in 2000? 921
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 6. On average, how many people per square mile lived in Davis County in 2000? 82, 204 ÷ 1, 139 = 72. 17 people per square mile 921
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 7. How many less people live in Evans County in 2010, as compared to 2000? 921
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 7. How many less people live in Evans County in 2010, as compared to 2000? 139, 510— 130, 748 = 8762 people 921
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 8. To the nearest percent, what was the percent decrease in Evans County population from 2000 to 2010?
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 8. To the nearest percent, what was the percent decrease in Evans County population from 2000 to 2010?
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 8. To the nearest percent, what was the percent decrease in Evans County population from 2000 to 2010? To do this, first get the change in population, then divide that number by the total living there in 2000. 139, 510— 130, 748 = 8762 people……. 8762 ÷ 139, 510 = 0. 0628………. . Multiply this decimal by 100%, round to the NEAREST percent 0. 0628 x 100% = 6% decrease
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 9. To the nearest percent, what was the percent decrease in Bell County population from 2000 to 2010?
The table below shows population figures for selected counties in 2000 and in 2010, & the land area in sq. miles for each county. County 2000 population 2010 population Land area in square miles Adams 11, 128 15, 295 4, 255 Bell 25, 199 22, 707 2, 523 Cook 6, 532 6, 518 2, 398 Davis 82, 204 90, 834 1, 139 Evans 139, 510 130, 748 921 9. To the nearest percent, what was the percent decrease in Bell County population from 2000 to 2010? 25, 199— 22, 707 = 2492 ÷ 25, 199 = 0. 09889 x 100% = 9. 889% = 10% decrease
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