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enyata [817]
2 years ago
7

PLSS GUYS I NEED HELP

Mathematics
1 answer:
docker41 [41]2 years ago
8 0

Answer:

Option B. is the right choice.

Step-by-step explanation:

f(-3) = 3  and f(3) = 5   (First and the last column of table B)

Best Regards!

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A growth-mindset researcher plans to take an SRS of 200 teenagers from the population of teenagers in North America to see what
Sonbull [250]

Answer:

The mean of the sampling distribution of p is 0.75 and the standard deviation is 0.0306.

Step-by-step explanation:

Central Limit Theorem:

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

75% of teenagers in North America are pursuing a goal they have set for themselves.

This means that p = 0.75

Sample of 200.

This means that n = 200.

What are the mean and standard deviation of the sampling distribution of p?

By the Central Limit Theorem

Mean \mu = p = 0.75

Standard deviation s = \sqrt{\frac{0.75*0.25}{200}} = 0.0306

The mean of the sampling distribution of p is 0.75 and the standard deviation is 0.0306.

4 0
3 years ago
Can someone help me?
nika2105 [10]
The answer would be B because range is the highest number take away the lowest number
8 0
3 years ago
80% of what number is 20
Olin [163]

the answer is 16 because .80 times 20 is 16

7 0
3 years ago
Read 2 more answers
An air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute. Select all
Radda [10]

Answer:

The correct options are 3, 4 and 5.

Step-by-step explanation:

It is given that an air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute.

It means the initial height of air balloon is 1000. So, the y-intercept is (0,1000).

The ball falls at a rate of 50 ft per minute. So, the rate of change is

m=-50

The height of balloon is defined as

h(x)=-50x+1000                      [\because y=mx+b]

Where, x is time in minutes.

The balloon will reach the ground when h(x)=0

0=-50x+1000

50x=1000

x=20

Therefore the options 3, 4 and 5 are correct.

4 0
3 years ago
86 + qb= F mathematics
STALIN [3.7K]

Answer:

F=86+qb

Step-by-step explanation:

4 0
2 years ago
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