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3 years ago

Fill in the blanks -.-

Mathematics

2 answers:

RideAnS [48]3 years ago

7 0

The anwser is um 5 :)

Verdich [7]3 years ago

3 0

I’m guessing it’s 5 because in ounces it says 1,3 they skipped 2 soooo.

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A study indicates that 62% of students have have a laptop. You randomly sample 8 students. Find the probability that between 4 a

Scrat [10]

Answer:

72.69% probability that between 4 and 6 (including endpoints) have a laptop.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they have a laptop, or they do not. The probability of a student having a laptop is independent from other students. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

A study indicates that 62% of students have have a laptop.

This means that $n = 0.62$

You randomly sample 8 students.

This means that $n = 8$

Find the probability that between 4 and 6 (including endpoints) have a laptop.

$P(4 \leq X \leq 6) = P(X = 4) + P(X = 5) + P(X = 6)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 4) = C_{8,4}.(0.62)^{4}.(0.38)^{4} = 0.2157$

$P(X = 5) = C_{8,5}.(0.62)^{5}.(0.38)^{3} = 0.2815$

$P(X = 6) = C_{8,6}.(0.62)^{6}.(0.38)^{2} = 0.2297$

$P(4 \leq X \leq 6) = P(X = 4) + P(X = 5) + P(X = 6) = 0.2157 + 0.2815 + 0.2297 = 0.7269$

72.69% probability that between 4 and 6 (including endpoints) have a laptop.

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Likurg_2 [28]

The plant is currently 115 centimeters high

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Use a number line to arrange these numbers in order from least to greatest:<br> 2, 19, -11, 6, -5

SSSSS [86.1K]

the first one is -11,-5,2,6,19

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3 years ago

Explain how find is 7 x 20 is similar to find 7 X 2000 product

Harman [31]

You just multiply 7 x 20 and you will get the answer of 140 then just add two zeroes to get 14000.

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4 years ago

Read 2 more answers

Plug x= 2 into<br> 2x^4 - 3x^2 +5

GaryK [48]

Answer:

For example, try entering the equation 3x+2=14 into the text box. ... Here are some examples: y=2x^2+1, y=3x-1, x=5, x=y^2. To graph ... enter the expression you want to evaluate, want to

Step-by-step explanation:

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3 years ago