3 years ago

GIVING BRAINLIEST! EASY MATH!!

Mathematics

2 answers:

Svetradugi [14.3K]3 years ago

8 0

Answer:

800 bacteria

Step-by-step explanation:

yw<3

lora16 [44]3 years ago

4 0

Answer: 4

Step-by-step explanation:

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Bingel [31]

Answer:

Step-by-step explanation:

not needed

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3 years ago

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Zack divides 6 cups of fruits juice equally among 8 friends how much does each friend get?

Nonamiya [84]

Number of cups you have / number of friends to share it between = 6/8

You can simplify 6/8 by dividing both the numerator and the denominator by 2.

6/8 = 3/4 or 0.75 of a cup

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3 years ago

According to a study conducted by the Gallup Organization, the the proportion of Americans who are afraid to fly is 0.10. A rand

notsponge [240]

Answer: 0.1457

Step-by-step explanation:

Let p be the population proportion.

Given: The proportion of Americans who are afraid to fly is 0.10.

i.e. p= 0.10

Sample size : n= 1100

Sample proportion of Americans who are afraid to fly = $\hat{p}=\dfrac{121}{1100}=0.11$

We assume that the population is normally distributed

Now, the probability that the sample proportion is more than 0.11:

$P(\hat{p}>0.11)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.11-0.10}{\sqrt{\dfrac{0.10(0.90)}{1100}}})\\\\=P(z>\dfrac{0.01}{0.0090453})\ \ \ [\because z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}} ]\\\\=P(z>1.1055)\\\\=1-P(z\leq1.055)\\\\=1-0.8543=0.1457\ \ \ [\text{using z-table}]$