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3 years ago

What is the equation of the following line? (-3,9)(0,0)

2 answers:

5 0

Use the point-slope form. y-y₁= m(x-x₁). m stands for the slope. Do rise over run for the slope, which is (9-0)/(-3-0)= 9/-3 = -3. Use either (-3,9) or (0,0) as your (x₁,y₁). Using (0,0) is faster, so the equation is y=-3x

lana [24]3 years ago

3 0

<span>(-3,9)(0,0)
slope = 9 / -3 = -3
b = 0

equation
y = -3x</span>

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The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 3.5 . Suppose 49 golfers p

Nadya [2.5K]

Answer:

The probability that the average score of the 49 golfers exceeded 62 is 0.3897

Step-by-step explanation:

The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 3.5

$\mu = 61$

$\sigma = 3.5$

We are supposed to find he probability that the average score of the 49 golfers exceeded 62.

Formula : $Z=\frac{x-\mu}{\sigma}$

$Z=\frac{62-61}{3.5}$

$Z=0.285$

Refer the z table for p value

p value = 0.6103

P(x>62)=1-P(x<62)=1-0.6103=0.3897

Hence the probability that the average score of the 49 golfers exceeded 62 is 0.3897

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