3 years ago

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Mathematics

1 answer:

ki77a [65]3 years ago

5 0

Answer:

Step-by-step explanation:

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On a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are i

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

given that on a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are incorrect

By mere guessing probability for choosing correct answer = p = 0.2

also each question is independent of the other

Hence if X is the number of correct questions then

X is binomial with p = 0.2 and n = 6

a) being correct on three questions,

= $P(X=3) = 0.08192$

(b) being correct on four questions,

= $P(X=4) = 0.01536$

= $P(x=6) = 0.000064$

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2 years ago

If I cut 2/3 of a pie and put the big piece on my plate. Then eat 1/4 of the piece. What fraction of the original pie did I eat.

Hunter-Best [27]

If you took $\frac{2}{3}$ of a pie then only ate $\frac{1}{4}$ of that slice, you ate $\frac{1}{4}$ of $\frac{2}{3}$ .

$\frac{2}{3} * \frac{1}{4} = \frac{2}{12}$

Simplify.

$\frac{2}{12} = \frac{1}{6}$

So, you ate 1/6 of the pie.

6 0

3 years ago

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a store had 600 pounds of feed. after delivering equal amounts to 4 farmers , there are 60 pounds left. how many pounds did each

Daniel [21]

Answer: 135 pounds

Step-by-step explanation:

600-60=540

540/4=135

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2 years ago

A line contains the points (82, −96) and (87, −86). what is the slope of the line in simplified form?

True [87]

-96-(-86) -10 -2
------------= ------= -----= -2
82-87 -5 1

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3 years ago

$8.00 divided by 1/4

vazorg [7]

The answer is 32, because when you divide by a fraction you have to multiply the number by it's reciprocal.

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2 years ago