Answer:
x = -22
Step-by-step explanation:
6(x+15) = -42
x+15 = -7
x = -22
Answer:
its 30 a
Step-by-step explanation:
I think the answer is B but I am not sure
Answer:
Mean = 3.4
Variance = 1.088
Standard deviation = 1.0431
Step-by-step explanation:

The mean of a binomial distribution with parameters N (the number of trials) and p (the probability of success for each trial) is 
Thus,

The variance of the binomial distribution is
, where
is the variance of the binomial distribution, so

The standard deviation
is the square root of the variance
so

don't quote me on this but I'm pretty sure it's H multiplication property of inequality