Vu.
the table shows the mean number of basketball goals made by four random samples of players from the school team during
this year's season
sample #
1
sample mean
number of goals
2
3
5
is a valid prediction for the mean of the population possible using these samples?
no, there are not enough samples.
yes, the sample means are all less than 10
yes, the variation of the sample means is small
no, the variation of the sample means is too great.
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c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

the answer is 1/4

step-by-step explanation: