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3 years ago

•Need help, multiple choice•

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

A;H;D;G

Step-by-step explanation:

Altitude is a line from a vertex that intersects a side at a 90 degree angle. DE is the only altitude shown

Perpendicular bisectors divide a side into 2 congruent pieces, at a 90 degree angle. GB is the only perpendicular bisector shown.

An angle bisector is a line that divides an angle into 2 angles with the same measure. CF is the only angle bisector shown.

A median is a line that goes through a vertex and divides a side into 2 congruent lengths. AB is the only such example.

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The following table shows the probability distribution for a discrete random variable.

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Answer: C. 30.47

Step-by-step explanation:

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$E(X)=\sum^{i=n}_{i=1} X_iP(X_i)$

Now by using the given table, the expected value of X is given by :-

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