Answer:
p = 0.0116
Step-by-step explanation:
We are given;
Population mean; μ = 200 mg
Sample mean; x¯ = 194.3 mg
Standard deviation; σ = 21 mg
Sample size; n = 70
Formula for z-score is;
z = (x¯ - μ)/(σ/(√n))
z = (194.3 - 200)/(21/√70)
z = -5.7/2.51
z = -2.27
From the z-score table attached, the p-value at z = -2.27 is p = 0.0116
Answer : $ 9, 152
Luna invested $8000 for 36 months at an interest rate of 4.8%
Let P = principal
T = time
r = rate
Using the simple interest,
The total balance = Interest + principal
Balance = 1, 152 + 8000
Balance =$9, 152
The total money she will have at the end of the investment is $9, 152
Answer:
0.42
Step-by-step explanation:
divide 100÷42 then the answer is 0.42
I think it is c but I’m sorry if I’m wrong
Original volume = 2.5 million liters.
After evaporation, the remaining volume is 2 million liters, therefore
Evaporated volume = 2.5 - 2 = 0.5 million liters.
Percent of water evaporated = 100*(0.5/2.5) = 20%
Answer: 20%
