Adimas found the mean of her 11 math test scores for the first semester.
(76 +87 +65 +88 +67 +84 +77 +82 +91 +85 +90)
892
11
11
81
Using 81 as the mean, find the variance of her grades rounded to the nearest hundredth.
02=
Find the standard deviation of her grades rounded to the nearest hundredth.
O=

Using 81 as the mean, find the variance of her grades rounded to the nearest hundredth.

σ2 =  71.36

Find the standard deviation of her grades rounded to the nearest hundredth.

σ = 8.45

idk

step-by-step explanation:

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- niki minaj

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33