Answer:
Step-by-step explanation:
help please
Answer:
0.29166666666
Step-by-step explanation:
You divide 7/24 in a calculator and u get this anwer.
Answer:
14.1 to the nearest tenth.
Step-by-step explanation:
x^2 = PT * WT as T is a tangent to the circle.
x^2 = (10 + 10)*10 = 200
x = √200
= 14.1.
Answer:
124.75
Step-by-step explanation:
Lets X be aleatory variable for iq scores. Here, wee need a value α such that, the probability that X is greater than α is higher than 0.95. This is:
P(X > α)=0.95
As X distributes normal, if we subtract the mean and divide y its std. dev. it will distribute normal with mean 0 and sts. dev. 1, which permits us to use the normal distribution table to solve it. Doing so:
P([X - 100]/15 > [α-100]/15)=0.95
Using the normal table, we need to look for the value that gives us a probability on 0.95, an it it 1.65.
So, 1.65 must be equal to [α-100]/15 :
1.65 = [α-100]/15
Multiplying both sides by 15:
24.75 = α-100
Summing 100 in both sides:
124.75 = α
So, for scores equals or greater to 124.75 you will be in the top 5% scores.
