1) How many combinations of the letters A, B, C, D, and E taken 4 at at time?
5
720
20
9
Define theoretical probability.
possible outcomes times favorable outcomes
favorable outcomes times possible outcomes
favorable outcomes divided by possible outcomes
possible outcomes divided favorable outcomes
2) What is the theoretical probability you will roll a 2 on a die?
1/3
2/6
1/6
2
3) On a spinner with equal pie shapes of red, blue, green, yellow, and orange. What is the theoretical probability you will land on blue when you spin?
4/5
5
1
1/5
4) Susie has 12 cook books and 18 wine lists on her shelf. What is the ratio of wine lists to cook books in simplest form?
12/18
3/2
2/3
100
A bag contains 5 red, 6 blue, and 3 yellow marbles.
5) What is the probability of drawing a red or yellow marble from a bag?
5/14
14
8
8/14
6) For a game of bingo, balls are numbered 1-100, one ball is chosen. Find P(number greater than 10
10
9/10
1/100
100
7) Find the mean of this set of data. 10, 15, 25, 50
4
20
25
100
8) Find the median of this set of data: 6, 23, 46, 3, 17
46
95
19
17
9) What is the mode of this data set: 3, 7, 10, 18, 4, 5
6
0
no mode
9
10) What does the leaf represent in a stem-and-leaf plot??
the tens place of the numbers in the data set
the numbers in the data set
the ones place of the numbers in the data set
11) Finding quartiles are like finding what???
quarters
medians
money
means
12) In a sample of 1,000 coffee drinkers, 450 said they like the taste of the new coffee. Predict how many out of 10,000 will like the new coffee.
4500
450
100
45
