Histogram Practice

Histogram Practice

Open Ended

BW: Let's review a little bit. Looking at your notes from LAST WEEK, how do you find mean, median and mode from a table?

Fill in the Blanks

Another bellwork: Find an estimate mean for the table in the picture. ROUND to 1 decimal place

Open Ended

Review from Friday/Monday: When drawing a histogram, what information do you need to find?

Multiple Choice

Frequency density =

• Frequency / class width

• Class width / frequency

• Frequency * class width

• frequency - class width

Multiple Choice

For the grouped data shown here. What will you use to draw the histogram?

• Frequency

• Frequency density

Multiple Choice

What is the missing value in the table?

• 0.8

• 0.9

• 1

• 1.1

Multiple Choice

What is the value of the ? in this table?

• 1.2

• 1.4

• 1.6

• 1.8

If you want practice DRAWING Histograms

There is a practice packet in the schoology folder, and an answer key is uploaded to check your work

Open Ended

Review from Tuesday: How do histograms help us make estimates about the data? (**Hint, think about the area of the bars)

Multiple Choice

Frequency =

• FD / CW

• CW / FD

• CW * FD

• CW + FD

Multiple Choice

On Tuesday, Victoria measured the time in seconds that individual birds spent on her bird table. She used this information to complete the histogram shown below.

How many birds spent between 30 seconds and 50 seconds (30 seconds < t ≤ 50 seconds) ?

• 20 birds

• 16 birds

• 8 birds

• 5 birds

• 4 birds

Multiple Choice

On Tuesday, Victoria measured the time in seconds that individual birds spent on her bird table. She used this information to complete the histogram shown below.

How many birds spent between 25 seconds and 30 seconds (25 seconds < t ≤ 30 seconds) ?

• 10 birds

• 18 birds

• 20 birds

• 24 birds

• 36 birds

Multiple Choice

On Tuesday, Victoria measured the time in seconds that individual birds spent on her bird table. She used this information to complete the histogram shown below.

How many birds spent between 20 seconds and 25 seconds (20 seconds < t ≤ 25 seconds) ?

• 35 birds

• 28 birds

• 21 birds

• 14 birds

• 7 birds

Multiple Choice

On Tuesday, Victoria measured the time in seconds that individual birds spent on her bird table. She used this information to complete the histogram shown below.

How many birds spent between 10 seconds and 20 seconds (10 seconds < t ≤ 20 seconds) ?

• 10 birds

• 18 birds

• 20 birds

• 24 birds

• 36 birds

Multiple Choice

How many people have a height between 130cm and 155cm?

• 16

• 28

• 44

• 45

Multiple Choice

Estimate how many children have a height over 85cm?

• 38

• 40

• 48

• 30

Multiple Choice

How many children have a height greater than 90cm?

• 25

• 15

• 27

• 12

Multiple Choice

How many have a weight greater than 255g?

• 2

• 6

• 4

• 3

Multiple Choice

How many objects have a weight between 245g and 250g?

(Hint the first interval is 245-248)

• 14

• 17

• 10

• 20

Multiple Choice

How many children are between 65 cm and 75 cm tall?

• 4

• 2

• 0.2

• not enough information