3 years ago

What is the probability that a student failed the test GIVEN that they studied

Mathematics

1 answer:

puteri [66]3 years ago

5 0

Answer:

1/12

Step-by-step explanation:

You are close but 1/27 includes people who did not study but still passed. If you want a singular value you should look at the value for the for only the people who studied even if they passed.

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Factorise the following expressions.

Setler79 [48]

Answer:

Q.1 a²+10a+24

splitting the middle.

a²+6a+4a+24

=a(a+6)+4(a+6)

(a+6)(a+4)

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splitting the middle

x²+6x+3x+18

x(x+6)+3(x+6)

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3 years ago

Using the following image, solve for SR. Look at the image closely.

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Step-by-step explanation:

I assume

SR = 2x + 23

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if that is true, then the situation is completely simple :

14 = (2x + 23) + (x + 21) = 3x + 44

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2 years ago

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liraira [26]

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3 years ago

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sing traditional methods, it takes 108108 hours to receive a basic driving license. A new license training method using Computer

solniwko [45]

Answer:

$z_{stat} = -1.50$

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 108

Sample mean, $\bar{x}$ = 107

Sample size, n = 110

Alpha, α = 0.02

Population standard deviation, σ = 7

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

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Answer:

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Step-by-step explanation:

The correct answer is actually slope-intercept form.

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