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fgiga [73]
3 years ago
11

What is the distance between points P(8, 5) and Q(2,-3) to the nearest tenth?

Mathematics
1 answer:
Fantom [35]3 years ago
4 0
I will say its the correct answer
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A study was done to determine the average number of homes that a homeowner owns in his or her lifetime. For the 50 homeowners su
ipn [44]

Answer:

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom,which is the sample size subtracted by 1. So

df = 50 - 1 = 49

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0096

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0096\frac{3.8}{\sqrt{50}} = 1.1

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 5.1 - 1.1 = 4

The upper end of the interval is the sample mean added to M. So it is 5.1 + 1.1 = 6.2.

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

7 0
2 years ago
What number adds up to be 12 but also multiplies to be 12
netineya [11]
4+3+1+1+1+1+1 =12
4x3x1x1x1x1x1=12
8 0
3 years ago
Alyssa fed her dog 2/3 cup of dog food in the morning and another 5/8 cup in the evening. How much did her dog eat over the cour
kotegsom [21]
1 7/24 is the correct answer I will show you how to get it if needed.
8 0
2 years ago
Read 2 more answers
How many 5/16's are in 1 & 7/8?
MaRussiya [10]
There are 6 (five sixteenths) in 1 and (seven eighths)
8 0
3 years ago
A principal of $1800 is invested at 8.5% interest, compounded annually. How much will the investment be worth after 11 years?
posledela
Calc= 1800 times (0.085 ^11)
3 0
2 years ago
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