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3 years ago

Is the sample valid? what percent of students prefer caramel popcorn?

Mathematics

1 answer:

mixer [17]3 years ago

6 0

Is the sample valid?
First you must see if the number of students in the table corresponds to the number of students surveyed that was 75.
We have then:
33 + 15 + 27 = 75
We have then that:
The sample is valid.

what percent of students prefer caramel popcorn?
We can make the following rule of three to answer this question:
75 ---> 100%
27 ---> x
Clearing x we have:
x = (27/75) * (100)
x = 36%
36% percent of students prefer caramel popcorn

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3 years ago

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Answer:

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$\sin Y= \frac{XZ}{XY}$

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$\cos\theta = \frac{Adjacent}{Hypotenuse}$

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2 years ago

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A bag contains 2 black balls, 4 yellow balls and 4 white balls. Event A is defined as drawing a white ball on the first draw and

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Answer: $P(B|A)=\dfrac{4}{9}$

Step-by-step explanation:

Given: A bag contains 2 black balls, 4 yellow balls and 4 white balls.

Event A is defined as drawing a white ball on the first draw.

Event B is defined as drawing a black ball on the second draw.

P(B|A) is expressed as the conditional probability of occurring B given that A.

i.e. it is the probability of happening B where A is already happended.

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2 years ago

Please help me complete 5 and 6

Rina8888 [55]

1. Parenthesis:
(15)8 - 4 + 2 + 1
Multiply:
120 - 4 + 2 + 1
Subtract:
116 + 2 + 1
Add:
119, the answer is A.
2. 8 x 15 = 120
120 / 2 = 60
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2 years ago

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Answer:

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