Answer:
E 0.923
Step-by-step explanation:
The Z score is a measurement used in statistics to determine the relationship between a value and a mean of a group of values measured as standard deviation from the mean. The z score (z) is given as:
, Where μ is the mean, σ is the standard deviation and x is the value.
Given that:
σ = 7, μ = 80 and x = 90
From the normal distribution table, P(X < 90) = P(z < 1.43) = 0.923
Answer:
C. 5
Step-by-step explanation:
a triangle has 180 degrees as shown 1 angle has 88 degrees and the other 2 angles are equal basically divide 92 by 2 and you would get 46 then do that reverse thingy subtract the 1 and get 45 the divide 45 by 9 and get 5
Its C.
<u>Equation/Question:</u>
Solve for b. 3(b + -2)-8=-5 what is the answer?
<u>Answer/Steps to answer:</u>
1.Simplify b+-2 to b−2.
3(b−2)−8=−5
2. Add 8 to both sides.
3(b-2)=-5+8
3. Simplify -5+8 to 3.
3(b-2)=3
4. Divide both sides by 3.
b-2=1
5. Add 2 to both sides.
b=1+2
6. Simplify 1+2 to 3.
b=3
Done by <u>NeighborhoodDealer</u>
Answer:
2/3 = 1.5
Step-by-step explanation:
