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IRINA_888 [86]
3 years ago
15

Mrs. Drew’s class is doing a survey of the 8 th grade students. They are collecting data of each student’s arrival time at schoo

l and each student’s assigned lunch time. When arrival time is the independent variable and lunch time is the dependent variable, is the relation a function or not a function?
Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

i dontknow sorry

Step-by-step explanation:

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3(2.7+5)−2 what is the answer
lbvjy [14]

Answer:

The answer to the problem is 21.1

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3 years ago
An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cos
Amanda [17]

Answer:

Y = 7.60X + 1246.67

Step-by-step explanation:

Given the data:

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400 4000

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Using technology, the linear regression calculator, the regression model obtained by fitting the data is :

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6 0
3 years ago
Help me find Sample variance and standard deviation
AnnZ [28]
First, find the mean. You'll need it to compute the variance.

\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11

The variance of the sample is then computed with the formula

s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5

The standard deviation is the square root of the variance, so

s=\sqrt{35.5}\approx5.958
5 0
3 years ago
During a weekend, the manager of a mall gave away gift cards to every 80th person who visited the mall. On Saturday, 1,210 peopl
Talja [164]

Answer:

37

Step-by-step explanation:

7 0
3 years ago
What is the geometric mean between 7 and 12
Tresset [83]

Answer:

Geometric Mean = 9.17

Step-by-step explanation:

Here,

a = 7

b = 12

Geometric mean = root(ab)

= root( 7 x 12)

= root(84)

= 9.17

6 0
3 years ago
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