I think the answer might be 6 but I’m not really 100% sure
X/7=14
Then you multiply 14*7 and x=98
Answer:


Then we can find the probability of interest with this difference:
And using the normal standard distribution or excel we got:
So then the probability that the sample mean would differ from the true mean by less than 28 dollars from the sample of 55 is approximately 0.390
Step-by-step explanation:
We define the variable of interest as the per capita income and we know the following properties for this variable:
and
We want to find this probability:
We select a sample size of n=55 and we define the z score formula given by:

We can find the z score then for 20880 and 20936 and we got:


Then we can find the probability of interest with this difference:
And using the normal standard distribution or excel we got:
So then the probability that the sample mean would differ from the true mean by less than 28 dollars from the sample of 55 is approximately 0.390
Answer:
<u>3/40</u>
Step-by-step explanation:
Probability (Quarter 1st) :
⇒ Number of quarters / Number of coins
⇒ 5 / 9 + 3 + 8 + 5
⇒ 5/25
⇒ 1/5
============================================================
The coin is not replaced.
Probability (Penny 2nd) :
⇒ No. of pennies / Total - 1
⇒ 9 / 25 - 1
⇒ 9/24
⇒ 3/8
==========================================================
Probability (both) :
⇒ 1/5 × 3/8
⇒ <u>3/40</u>
Answer:
The boats are far apart by 4506.1 feet
Step-by-step explanation:
from the graph attached
i) BC = 1353
= 2761.82 feet
ii) BD = 1353
= 1744.28 feet
iii) the boats are far apart by = CD = CB + BD = 2761.82 + 1744.28 = 4506.1 feet