Answer:
B
Step-by-step explanation:
52.50*0.15=7.875
7.875 rounded is 7.88
hope this helps :3
if it did pls mark brainliest
Answer:
The test statistic is and the observed value 1.68
Step-by-step explanation:
We have a large sample size n = 100, the point estimate for the true proportion of overfilled bags p is given by . The test statistic is given by which is distributed as a standard normal variable approximately because we have a large sample. The observed value for the test statistic in this case is
Answer:
I hope this is what you're looking for. Hope this helps.
Answer:
Pr(A) = 0.55
Pr (B) = 0.55
Pr (C) = 0.3025
Pr (D) = 0.166375
Step-by-step explanation:
Given that:
Pr(tail) = 55% = 0.55
Pr (head) = 1 - Pr(tails)
Pr (head) = 1 - 0.55
Pr (head) = 0.45
Pr(A) = first flip is a tail = 0.55
Pr (B) = second flip is a tail
Pr(B) = Pr(head on the first flip and tail on the second flip) + P(tail on both flips)
Pr (B) = (0.45 × 0.55) + ( 0.55 × 0.55)
Pr (B) = 0.2475 + 0.3025
Pr (B) = 0.55
Pr (C) = 0.55 x 0.55
= 0.3025
Pr (D) = 0.55 x 0.55 x 0.55
= 0.166375
From above; we can conclude that Pr (A) and Pr (B) are independent.