Answer and Step-by-step explanation:
1) 12*12 = 144
2) 2*2*2 = 8
Answer:
C. becomes narrower
Step-by-step explanation:
If the confidence level is reduced from 95% to 90%, then, the confidence interval for u becomes narrower, i.e., we are less sure that the true value of u is contained inside the new interval. With a 95% confidence interval there is a probability of 0.95 that the parameter u is inside the interval and with a 90% confidence interval there is a probability of 0.90 that the parameter u is inside the interval.
30% = 0.30
100 - 100(0.30) = 70
20% = 0.20
70 - 70(0.20) = 56
the answer is c
90*4 = 360
so all the scores need to = 360 for a 90 average
83+88+92 = 263
360-263 = 97
minimum score is a 97
Answer:
Step-by-step explanation:
Subtract One-third from each side of the equation.
Add 2 to each side of the equation.
Combine like terms.
Multiply each side of the equation by 5.
