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3 years ago

7

A six sided number cube is laveled with number from 1 to 6 . If a student tolls the cube 150 times howany times should they expe

ct to roll an even number ?

1 answer:

andrey2020 [161]3 years ago

7 0

Answer:

75 times

Step-by-step explanation:

6 sided die - 1,2,3,4,5,6

3 of these numbers are even

P(even) = 3/6 = 1/2

1/2 * 150 = 75

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The following scatter plot shows the number of page views for a popular website and how many people signed up to receive emails

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Answer:

See Explanation.

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b - y-intercept

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Step-by-step explanation:

We can draw any best line of fit, as long as it is <em>reasonable</em> around the points that are given.

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Point (21600, 205)

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Define equation [SIF]: $\displaystyle y = \frac{17}{1080}x + b$
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Answer:

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Step-by-step explanation:

Given the data:

Number of students______$ spent

2 students______________$10

1 student________________$8

12 students______________$6

23 students______________$5

8 students_______________$4

4 students_______________$3

Sample size, n = 50.

Let's first find the value on each amount spent with the formula:

$\frac{num. of students}{sample size} * dollar spent$

Therefore,

For $10:

$\frac{2}{50} * 10 = 0.4$

For $8:

$\frac{1}{50} * 8 = 0.16$ l

For $6:

$\frac{12}{50} * 6 = 1.44$

For $5:

$\frac{23}{50} * 5 = 2.3$

For $4:

$\frac{8}{50} * 4 = 0.64$

For $3:

$\frac{4}{50} * 3 = 0.24$

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Expected value =

$0.4 + $0.16 + 1.44 +$2.3 + $0.64 + $0.24

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Therefore, the expected value for a student to spend on lunch each day is $5.18

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3 years ago