Answer:
20
Step-by-step explanation:
Answer:
First number: 15
Second number: 21
Third number: 84
Step-by-step explanation:
Step-by-step explanation:
P(A or B) = P(A) + P(B) − P(A and B)
P(A or B) = 6/36 + 5/36 − 0/36
P(A or B) = 11/36
Answer:
A. 14.6 ± 7.00
Step-by-step explanation:
Formula for the confidence interval between the two mean is;
CI = (μ2 - μ1) ± z√[((s1)²/n1) + ((s2)²/n2)]
We are given;
μ1 = 94.5
μ2 = 109.1
s1 = 10
s2 = 9
n1 = 10
n2 = 10
The z-value at confidence interval of 90% is 1.645
Thus;
CI = (109.1 - 94.5) ± 1.645√[(10²/10) + (9²/10)]
CI = 14.6 ± 7.00