Worksheetsmath 7/8 probability and data review
Total questions: 35
Worksheet time: 2hrs 9mins
You spin the spinner and flip a coin. Find the probability of the compound event. Spinning an odd number and flipping heads
3/10
2/10
1/5
3/5
You randomly choose one of the tiles.
Without replacing the first tile, you choose a second tile. Find the probability of the compound event. Choosing a 6 and then a prime number.
5/42
4/49
2/21
4/49
*Remember to simplify.*
A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?
1/9
2/9
5/21
10/21
Kate spun the spinner 75 times and landed on "3" thirty times.
What is the experimental probability as a percentage?
20%
30%
40%
50%
A piggy bank contains 4 quarters, 18 dimes, 10 nickels, and 8 pennies. A coin is chosen at random, not replaced, then another is chosen. Find each probability.
P (penny, then dime).
1/8
9/100
6/65
17/195
Find the probability of each set of independent events.
drawing a black checker from a bag of 6 black checkers and 4 red checkers, replacing it, and drawing another black checker.
2/3
9/25
2/5
3/5
A standard die is rolled twice. Find each probability.
P (odd both times)
1/2
1/4
2/3
1/9
A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made with replacement.P(both marbles are purple)
2/9
1/3
1/2
1/4
Cole has two bags of marbles. The first bag contains 6 red, 5 blue, & 4 green marbles. The second bag contains 3 red, 2 blue, & 4 green marbles. Cole will randomly select 1 marble from each bag. What is the probability he selects a blue marble from each bag?
5/9
1/35
1/6
2/27
Jack tossed a coin three times. Which tree diagram shows all the possible outcomes of the coin landing heads up or tails up?
What is shape of the data?
symmetrical
skewed left
skewed right
range
Which is a true statement based on the box plots above
The data for Team B have the greater range.
The data for Team A are more symmetric.
The data for Team B have the greater interquartile range.
The data for Team A have the greater median.
Which is a true statement based on the dot plots above?
Set B has the greater range
Set B has the greater median
Set B is skewed left
Set A is less symmetric that Set B
What conclusion can Ms. Long make about the performance of her first- and second-period classes?
The first-period class had a higher median score than the second-period class.
Both graphs are uniform with one peak.
The first-period class scores had a greater range than the second-period class scores.
Both classes have the same range.
Which mean absolute deviation would be more consistent? 4.2 or 8.5?
4.2
8.5
True or false? :The larger the Mean Absolute Deviation the more consistent the data is.
True
False
Find the Mean Absolute Deviation: (MAD)
10, 9, 3, 8, 10.
3
5
1
2
Which is the correct Mean and Mean Absolute Deviation to the following numbers?
0, 0, 5, 6, 9 and 2
Mean: 3.66
MAD:3
Mean: 3
MAD:3.66
Mean:3
MAD:4
None of the above
