There is this app called Photomath where you just take a picture of your problem and it tells you the answer and how to solve it and the solving steps
Answer:
C. 150
Step-by-step explanation:
60+150+120+270=600
600/4=150
Answer:
102.4
Step-by-step explanation:
8(19-6.2)
8(12.8)
102.4
Answer:
3 5
6 11
8 15
17 33
11 21
Step-by-step explanation:
the pattern for the y is to add the same amount then subtract 1.
Answer:
14.59%.
Step-by-step explanation:
Part A
You can not accurately calculate this because the SRS is not over 30. The CLT states that if the sample size is big enough, it will have a normal distribution. 15 is not big enough.
Part B
You can calculate this because the sample size is over 30; in this case, it is 40. So first, we have to find the standard deviation of the sampling distribution of the means. Which is done by taking the standard deviation and dividing it by the square root of the sample size, which comes out to be 4.74341649. Next, we throw it into the calculator in Normal CDF (260,9999,255,4.74341649). The final answer comes out to be 14.59%.
