This is a question that can also be interpreted as what is the probability of having the first number of a phone number to be 8 and the last number of the phone number to also be 8. This answer gives the fraction of the phone numbers that starts with 8 and end with 8.

Since three numbers (0,1,2) cannot start a phone number and we are left to pick from 7 numbers,

then the probability of figure "8" starting phone number = 1/7

Since all 10 numbers can possibly end a phone number,

then the probability of having figure "8" as the last digit of a phone number = 1/10

Hence probability of having "8" as the first and last digit of a phone number = fraction of total telephone numbers that begin with digit 8 and end with digit 8 = 1/7 × 1/10 = 1/70.

5 0

3 years ago

What is the sample space for a spinner with four equal sections, numbered 1 to 4?

aev [14]

1-1, 1-2, 1-3, 1-4 and u should Change it to middle school

3 0

3 years ago

Read 2 more answers

Charles has 24 marbles. He has 6 more marbles than blue marbles. Which equation represents this situation.

statuscvo [17]

Answer:

n + (n + 6) = 24.