Find each of the requested values for the distribution shown in the following table. X_ f

70-79 1

60-69 2

50-59 5

40-49 6

30-39 4

20-29 1

10-19 1

a. What score has a percentile rank of 60%?

b. What score has a percentile rank of 50%

c. What is the percentile rank for X = 45?

d. What is the percentile rank for X = 32?

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

8

step-by-step explanation: