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3 years ago

5

A class is selling magazines as a fundraiser. Of the 200 magazines sold, Ananda sold 1/8 of them. Gina sold 0.065 of the magazin

es. Ben sold 3/100 of the magazines, and Fatima sold 0.105 of the magazines. Who sold the most magazines?
A. Fatima

B. Gina

C. Ananda

D. Ben

1 answer:

inysia [295]3 years ago

4 0

Ananda all the other numbers are smaller

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A new medical test provides a false positive result for hepatitis 2% of the time that is a perfectly healthy subject being teste

Oxana [17]

Given that X <span>be the number of subjects who test positive for the disease out of the 30 healthy subjects used for the test.

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Part A:

</span><span>The probability that all 30 subjects will appropriately test as not being infected, that is the probability that none of the healthy subjects will test positive is given by:

</span> $P(X)={ ^nC_xp^x(1-p)^{n-x}} \\ \\ P(0)={ ^{30}C_0(0.02)^0(1-0.02)^{30-0}} \\ \\ =1(1)(0.98)^{30}=0.5455$
<span>

Part B:

The mean of a binomial distribution is given by

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<span>
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</span> $\sigma=\sqrt{np(1-p)} \\ \\ =\sqrt{30(0.02)(1-0.02)} \\ \\ =\sqrt{30(0.02)(0.98)}=\sqrt{0.588} \\ \\ =0.7668$
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Part C:

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5 0

3 years ago

PICKING BRIANLIEST FOR THE CORRECT ANSWER!!!!!!!!!!!

irga5000 [103]

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2 years ago

Read 2 more answers

Rafael wanted to order half a medium pizza at a restaurant. The waiter told him that a medium pizza could be cut into 6 or 8 sli

Nady [450]

Answer:

The wrong in Rafael reason is that 3/6 = 4/8 = 1/2 pizza

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- When we have a quantity we can divided it to many equivalent

fractions

- Equivalent fractions means fractions equal each other

- We can find the equivalent fraction by multiply or divide the two

terms of the fraction by the same number

- Ex: We can divide a circle into two equal parts each part is 1/2 the

circle, if we multiply each term of the fraction by 2 (up and down)

then we will have 2/4 which is equivalent to 1/2 the circle

- Then we can divide the circle by 2 parts with many equivalent fractions

1/2 = 2/4 = 3/6 = ..................

* <em>Lets solve the problem</em>

- Rafael wanted to order half a medium pizza

- The medium pizza could be cut into 6 or 8 slices

∵ The half of 6 is 3/6

∵ The half of 8 is 4/8

- <em>Lets simplify the two fraction</em>

∵ 3/6 = 1/2 by dividing up and down by 3

∵ 4/8 = 1/2 by dividing up and down by 4

∴ There is no difference between the two orders, both of them

equal half the pizza

∴ The wrong in Rafael reason is that 3/6 = 4/8 = 1/2 pizza

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3 years ago

X^3 ÷ x^5<br> a)x^8<br> b)x^2<br> c)x^-8<br> d)x^-2

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Step-by-step explanation:

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3 years ago

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Answer:

Here are some things that could help.

Step-by-step explanation:

PEMDAS/GEMDAS

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Exponents (x², x⁷)

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Division

Adding

Subtracting

Example:

5²+3(12+2)+6•9

12+2 would be first, then find 5², then 6•9, then the result from 5²+3, and then add the rest of the results.

sorry I'm bad at explaining

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