3 years ago

Q. Muzi has already taken 2 pictures at home, and she expects to take 1 picture during

Mathematics

2 answers:

Sati [7]3 years ago

5 0

2 pictures have already been taken
X is the number of vacation days
1x is one picture per vacation day

2+1x=y

hodyreva [135]3 years ago

5 0

Answer:

y= x+2

Step-by-step explanation:

she's already taken two pictures of just taking one a day it is simply x + 2 and y is just the total

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Find the standard deviation of the data set below. Round to the nearest tenth,<br> 6, 5, 2, 5,8

ASHA 777 [7]

Answer:

The standard deviation = 1.9

Step-by-step explanation:

standard deviation, ρ = sqrt ( $\frac{sum(x_{i} - u)^{2} }{N}$ )

Where u is the mean of the data, $x_{i}$ each given value, and N is the number of data given.

Mean, u = $\frac{6+5+2+5+8}{5}$

= 5.2

So that;

$(6-5.2)^{2}$ = $(0.8)^{2}$ = 0.64

$(5-5.2)^{2}$ = $(-0.2)^{2}$ = 0.04

$(2-5.2)^{2}$ = $(-3.2)^{2}$ = 10.24

$(5-5.2)^{2}$ = $(-0.2)^{2}$ = 0.04

$(8-5.2)^{2}$ = $(2.8)^{2}$ = 7.84

Sum = 18.8

So that;

$\sqrt{\frac{18.8}{5} }$ = $\sqrt{3.76}$

= 1.9391

= 1.9

The standard deviation of the given data is 1.9

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