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frosja888 [35]
3 years ago
8

Can someone help me do this I don't understand it

Mathematics
1 answer:
Setler [38]3 years ago
5 0
You have divided each one I hope this helpful
You might be interested in
I report if u guess or answer randomly. Which confidence level would produce the widest interval when estimating the mean of a p
kap26 [50]

Answer:

B. 61%

Step-by-step explanation:

When we have the standard deviation of a sample, we use the t-distribution.

The width of an interval is related to the margin of error, which is given by the following equation:

M = T*s

In which T is related to the confidence level(and the sample size) and s is the standard deviation of the sample. Higher confidence levels have higher values of T.

A higher margin of error means that the interval is wider. To have a higher margin of error, we desire a higher value of T, which is achieved with a higher confidence level.

So the correct answer is:

B. 61%

5 0
2 years ago
The average of three numbers is 25. The average of two of those numbers is 21. What is the value of the third number of the orig
Elza [17]

Answer:

b) 33

Step-by-step explanation:

You reverse the process of finding the second average, 21, which will help you find the original average, 25. First you multiply the second average, 21, to retrace your steps. We do this because the last thing we do when we find the average is divide. when you multiply 21 you get 42. Now you have the value of the first two numbers. Then you experiment with the numbers. To save time I'll get to the point. When you add 33 + 42 you get 75. Then you divide by 3 to get 25. You divide by three because the instructions say there was 3 numbers to start with. Hope this helps.

8 0
3 years ago
Adelaide paid $35 for a manicure and gave the manicurist a 20% tip.
Inessa05 [86]
She paid $42 dollars in total.
3 0
2 years ago
A charity fair raised $6,000 by selling 500 lottery tickets. There were two types of lottery tickets: A tickets cost $10 each, a
lara [203]

Answer:

it would be E

Step-by-step explanation:

20x60= 4800

480x10= 1200

4800+1200= 6000

6 0
3 years ago
What is 6+6+6+6+6+6= ?
IRINA_888 [86]

Answer:

36

Step-by-step explanation:

6x6

5 0
2 years ago
Read 2 more answers
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