Answer:
Q1) 0.46 Q2)0.2333
Step-by-step explanation:
Q1) P=(4+12+7)/50 =0.46
Q2) P=7/(4+7+10+9)
Answer: B. 
Step-by-step explanation:
The confidence interval for the population mean is given by :-

Given : Sample size : n= 100
Sample mean : 
Standard deviation: 
Level of confidence = 0.95
Significance level : 
Critical value : 
Then, 95% confidence interval for the population mean will be :-

Answer:
5^2=25 5x5
5^-2=.04 The reciprocal of 5 is 1/5 ^2 means that 1/5 x2 = 2/5 or .4
(-5)^2=25 -5*-5
-5^2=-25 -(5*5)
Answer:
59 + 7/9
Step-by-step explanation: