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butalik [34]
3 years ago
14

Tiffany wants to illustrate the homework times she and some of her friends spent one night on one subject. Her goal is to show t

he range of times and be able to find the mean, median, and mode of all of the times. What would have been a better data display to use?
line graph
Mathematics
2 answers:
chubhunter [2.5K]3 years ago
8 0
My best guess is a line graph because it shows the consistent numbers and then you can lay them all out after you have completed the graph
garri49 [273]3 years ago
4 0
I said stem-and-leaf plot since that deals with median mode and mean
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A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
lara [203]

Answer:

y=7x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

k=y/x                      

For (2,14) ----> k=14/2=7

For (4,28) ----> k=28/4=7

so                              

the value of k=7            

therefore                                          

The equation  is                                                    

y=7x                

3 0
2 years ago
Read 2 more answers
A scientist wishes to estimate the mean breaking strength of a certain type of steel rod within 3.0 psi with 95% confidence. Bas
yaroslaw [1]

Answer:97 rods

Step-by-step explanation:

The number of steel rods for 95% confidence level

n=\left ( \frac{Z_\frac{\alpha }{2}\times \hat{\sigma }}{E} \right )^2

Z_\frac{\alpha }{2}=1.96

E=3

\hat{\sigma }=15

Substituting values

n=\left ( \frac{1.96\times 15}{3}\right )^2

n=96.04\approx 97

Thus 97 rods is tested

6 0
3 years ago
Plz do both plz plz plz
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The first one is A and the second is either B or D I can’t decide
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Equation of the line that passes through the points (0,6) and (-5,2)?
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Answer:

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Step-by-step explanation:

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She sold around 17 t shirts
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