The mean of a set of 5 numbers is 7. a) What is the sum of the numbers? b) If the number 1 is added to the list, what is the new sum of the numbers? c) What is the mean of the new list of numbers?

a)35  b)36 or 31  c)36/6=6 or 31/5=5.2

Step-by-step explanation:

a) The mean is the sum of all the numbers divided by how many there are, so the inverse to that would be 5*7=35

b) I do not fully understand the question, if it is added as the 6th number, than 36, if it is substituted in for one of the 5 then 31.

c) I have already mention that the mean is the sum/how many #s, so in the case of 36: 36/6=6 or 31/5 =5 1/5=5 2/10=5.2

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.