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soldier1979 [14.2K]
2 years ago
6

Question 1 of 25

Mathematics
1 answer:
Mariulka [41]2 years ago
8 0

Answer:

B

Step-by-step explanation:

In right triangles   S-O-H-<u>C-A-H</u>-T-O-A

CAH =   COSINE = ADJACENT / HYPOTENUSE

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8/2z=15/60 .solve proportion.
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Based on the information given, it should be noted that the mean and standard deviation of Y will be 0.4899 and 0.699 respectively.

<h3>Calculating the mean.</h3>

Based on the information given, it should be noted that the probability distribution for y will be:

Y                   0        1.         2

Probability 0.63.   0.25.   0.12

The mean of Y will be:

= (0 × 0.63) + (1 × 0.25) + (2 × 0.12)

= 0 + 0.25 + 0.25

= 0.49

The variance will be 0.4899. Therefore, the standard deviation will be:

= ✓0.4899

= 0.699

Learn more about mean on:

brainly.com/question/19243813

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