A particular telephone number is used to receive both voice calls and fax message calls. Suppose that 25% of the incoming calls are fax message calls. Among the next 25 calls, find the probability that the number of calls that involve a fax message exceeds the expected number by more than 2 standard deviations.

b

step-by-step explanation:

the word superfluous means unnecessary

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

y=20x

: )

hope this

v=1788.75

step-by-step explanation:

i belive that is the answer