Answer the question below

Step-by-step explanation:

A frequency table contains information on how many times values in different inteverals occur in a data set. To find the frequency for those intervals, we can lay out the values that lie within it. For this frequency table:

5 ≤ h < 10: {5, 6, 6, 7, 8}, Frequency: 5

10≤ h < 15: {10, 10, 11, 12, 12, 12, 13, 14}, Frequency: 8

15 ≤ h < 20: {15, 15, 16, 17, 17, 18}, Frequency: 6

20 ≤ h < 25: {20}, Frequency: 1

answer: a and b

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages