The SAT scores are normally distributed with a mean of 1059, and a standard deviation of 145. Find the given probabilities for a randomly selected
student:
1. The student's SAT score is between 900 and 1000.
2. The student's SAT score is less than 950.
3. The student's SAT score is higher than 1400.
4. What is the score of the bottom 10%?
5. What is the score of the top 5%?

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

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