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butalik [34]
3 years ago
6

Math Mean Help Please!

Mathematics
2 answers:
klemol [59]3 years ago
8 0
84.5 would be the answer if rounded to the nearest tenth
ELEN [110]3 years ago
3 0
The correct answer is 84.5. I hope this helps and that i receive the brainliest answer. Have a great day:)
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Somebody help me please
Sauron [17]

Answer:

Here is the answer with the steps

Step-by-step explanation:

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3 0
3 years ago
The mean percent of childhood asthma prevalence in 43 cities is 2.16%. A random sample of 31 of these cities is selected. What i
IceJOKER [234]

Probability that the mean childhood asthma prevalence for the sample is greater than 2.6% is 0.0357 or 3.57 %.

What is Probability ?

Probability is the measure of likelihood of an event.

For a Normal Distribution ,

the z-score formula is given by

\rm Z = \dfrac{X - \mu }{\sigma}

Here \rm \mu\\ is the mean and \rm \sigma\\ is the standard deviation .

It is the measure of the deviation of the data from its central tendency.

Each z-score has a probability value.

It is given in the question that

Mean of 2.16% =  \rm \mu\\ = 2.16

Standard deviation of 1.36% means that  \rm \sigma\\ = 1.36

For Sample of 31 the value of standard deviation is \rm s = \dfrac{\sigma}{\sqrt{n}}

s = 1.36/√31

s = 0.2442

Substituting the values

Z = (2.6 -2.16)/0.2442

Z =1.8

the p value from the graph of z and p , 0.9643

To determine value of probability  more than X is 1 - 0.9643= 0.0357

the

Probability that the mean childhood asthma prevalence for the sample is greater than 2.6% is 0.0357.

To know more about Probability

brainly.com/question/11234923

#SPJ1

6 0
2 years ago
You answer 32 questions correctly on a 45 question test. You need a score of at least 70% to pass. Do you pass? Explain
Taya2010 [7]

Answer:

Yes

Step-by-step explanation:

32 divided by 45 = .7111111111111111111

7 0
3 years ago
Read 2 more answers
What is the solution to the equation below?
Hitman42 [59]
The answer is B).762
4 0
3 years ago
Sally had 2c/ in her bank. She found 6 dimes in her purse. How much money does sally have now?
zhenek [66]
Sally has $0.62 cents now.
3 0
3 years ago
Read 2 more answers
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