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2 years ago

Plllzzzzzzzzz helpppppppppppppppppppppp meeeeeeeeee

Mathematics

2 answers:

DaniilM [7]2 years ago

4 0

The answer is D :)
Hope this helped

3241004551 [841]2 years ago

3 0

Answer:

Step-by-step explanation:

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The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

8 0

3 years ago

If you drive 9hours and 465 kilometers how long would it take you to drive 768 kilometers

romanna [79]

I think it would be 13 hours possibly

8 0

3 years ago

If you are given the length of a hypotenuse and the length of an adjacent side, what

Evgen [1.6K]

Answer:

cosine

Step-by-step explanation:

6 0

2 years ago

You are allowed to eat at most 12 pieces of candy. You have already eaten 2. Write an inequality and solve to find how many more

I am Lyosha [343]

Answer:

One of the below.

Step-by-step explanation:

12-2=10 2+x=12

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2 years ago

A car travels 420 miles in 6 hours. What is the unit rate?

Semmy [17]

Answer:

Step-by-step explanation:

because 70 times 6 equals 420

3 0

2 years ago