Answer:
(7/4)(2)(2)=7
Step-by-step explanation:
Answer: (2.54,6.86)
Step-by-step explanation:
Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.
We assume the incomes are normally distributed.
Mean income : 
Standard deviation : 


The confidence interval for the population mean (for sample size <30) is given by :-

Given significance level : 
Critical value : 
We assume that the population is normally distributed.
Now, the 95% confidence interval for the true mean will be :-

Hence, 95% confidence interval for the true mean= (2.54,6.86)
Answer:
Option A
Step-by-step explanation:

we start with 12 red marbles out of 25 marbles, that's the probability for the first.
in the second step we have one red marble less, wich also means one marble less overall
and so on


can be reduced by 1320 (step by step) to

Answer:
a) 5(6) = 30
b) 3.5(6) = 21
c) 153
Step-by-step explanation:
c) 30 + 39 + 21 + 36 + 27 = 153