Show:
Statistics
Probability
Variability
More probability
Dot Plots and Box Plots
100
Find the mode: 6, 12, 3, 15, 3, 9, 2, 8, 1
What is 3
100
The probability of rolling an odd number on a regular six sided number cube.
What is 1/2
100

Another word for variability is ___________.

SPREAD or VARIATION.


100

If you flip a coin 100 times, you would expect it to land on heads about how many times?

50

100

How can you find the range of a dot plot?

Subtract the max (end of the right whisker) and the min (end of the left whisker).

200
Find the range: 771, 786, 745, 770, 786, 790, 786
What is 45
200
Simon tossed a coin 30 times. He got heads 12 times. What is the experimental probability of getting heads?
What is 2/5 remember: number of heads = 12 = 2 number of coins tossed = 30 = 5
200

In a Box & Whisker plot, 50% of the data is found where?

inside the box

200
If the the probability of spinning a four on a spinner is 1/5, the probability of not spinning a four is...
What is 4/5
200

Which measure of center is easiest to find from a Box & Whisker plot?

Median

300
Find the mean: 95, 92, 88, 85, 85, 91, 100, 88, 86, 90, 98, 94
What is 91
300
When rolling a number cube, the theoretical probability of not rolling a 2.
What is 5/6
300

Between Mean, Median, Mode, and Range, which can help us identify the Variability of a data set?

Range

300
A bag has two green marbles, two blue marbles, and one yellow marble. If you were to reach into the bag, what would the probability that you pull out a blue marble be?
What is 2/5
300

Which measure of center is the easiest to find in a Dot plot?

Mode

400
Find the median: 28, 25, 22, 15, 25
What is 25
400
If you toss a coin and roll a number cube, the probability of getting a heads and a 6 is this.
What is 1/12 remember: probability of heads x probability of 6
400

The "width of the box" in a Box and Whisker plot is also called the _____.

IQR

400

Alphabet tiles are placed in a bag. Students each pull out one tile at random. What is the probability that a vowel is selected?

What is 5/26

400

Describe the process for finding the mean of a data set using a Dot plot.

Add together all the numbers represented by the dots, then divide by the number of dots.

500
Find the median: $19, $24, $30, $30, $19, $28
What is $26
500
The probability of a certain event.
What is 1
500

Name two of the three measures we have used to describe the variability of a data set.

Range, MAD, IQR

500
Six children entered a drawing to win a bike. John entered three time; Karen entered two times; Roger entered once; Sarah entered twice; Joe entered three times; Linda entered once. The chances a boy was randomly picked was...
What is 7/12
500

If two data sets have the same Range, how could you use a double plot to decide which has the greater Variability?

Compare the IQRs.