A horseback riding club is sending one individual, one pair, and one team of vaulters to the championships. These performers wil

Answer:

He is dividing the angle BAC into two equal parts.

Step-by-step explanation:

Initially, he places the compass at point A and draws two small arcs intersecting points D and E. Next, setting the compass at D and then at E, he draws two arcs that intersect between the line segments AB and AC.

The bisecting line is drawn from point A through the intersection of these arcs.

Answer:

Step-by-step explanation:

The probability distribution for the random variable X is provided.

X 4 5 6 7 Total

P 0.2 0.4 0.3 0.1 1

x*p 0.8 2 1.8 0.7 5.3

x^2*p 3.2 10 10.8 4.9 28.9

a) The expected value E(X), representing the mean of X, equates to 5.3.

Standard deviation is the square root of the variance, which amounts to 0.9.

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b) For the mean of the sample, we find:

Mean = 5.3

Variance = var(x)/n =

c)

Martin possesses $7000 in her account.

Alonzo has one-tenth of Martin’s total.

This means Alonzo has:

When evaluating 'of', it implies multiplication is performed.

The numerator will be divided by the denominator.

Thus the calculation yields - 7000/10 = $700.

Alonzo has a total of $700.