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yaroslaw [1]
3 years ago
14

The average score of all golfers for a particular course has a mean of 70and a standard deviation of 5.Suppose 100golfers played

the course today. Find the probability that the average score of the 100golfers exceeded 71.Round to four decimal places.
Mathematics
1 answer:
Schach [20]3 years ago
6 0

Answer:

0.9773

Step-by-step explanation:

Here, we start by calculating the z-scores statistic

Mathematically;

z-score = (x-mean)/SD/√n

From the question, we have;

x = 71, mean = 70, SD = 5 and n = 100

Plugging these values in the equation above, we have;

z-score = (71-70)/5/√100 = 1/5/10 = 1/0.5 = 2

So the probability we want to calculate is that;

P(z > 2)

This is obtainable from the standard normal distribution table

P(z > 2) = 0.97725 which is 0.9773 to 4 decimal places

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Answer:

Step-by-step explanation:

(-4,0) ; (-7, -14)

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Answer:

Question 1 : The answer is 143.3 miles

Question 2 : The answer is 120 minutes

Step-by-step explanation:

1.Based on the give conditions:

43 \times 90 \div 27 \\ calculate \frac{43 \times 90}{27}  =  \frac{430}{3}= 143.3

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Answer:

x = ±2

Step-by-step explanation:

3x ^2 -4 = 8

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