The table describes a probability distribution for a certain event. find the mean, 4, for the probability distribution.

a. 144.0
b. 12.0
c. 19.2
d. 4.4

C. 19.2 is the mean for this probability distribution.

Step-by-step explanation:

The mean for a probability distribution is ∑ P(x).x

Here, x∈{10, 20, 30, 40, 50}

P(10) × 10= 5.34

P(20) × 20=3.86

P(30) × 30=4.2

P(40) × 40=3.4

P(50) × 50=2.4

∑=5.34+3.86+4.2+3.4+2.4= 19.2

Therefore, the mean of this probability distribution is 19.2.

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.