Question

he following data represents the age of 30 lottery winners. Given the frequency distribution for the data, Age Frequency Relative Frequency Cumulative Relative Frequency [20,29] 3 0.1 0.1 [30,39] 10 0.3333 0.4333 [40,49] 2 0.0667 0.5 [50,59] 7 0.2333 0.7333 [60,69] 4 0.1333 0.8666 [70,79] 3 0.1 0.9666 [80,89] 1 0.0333 0.9999 What is the frequency of lottery winners of age between 19 and 40? What percentage of lottery winners are 70 years or older? % What is the relative frequency of ages under 40? What is the cumulative relative frequency of lottery winners younger than 50?

Answer 1

Kindly check explanation

Explanation:

Age____ Freq__R/freq____ Cumm Rel Freq [20,29]___3____ 0.1________ 0.1

[30,39]__ 10__ 0.3333_____ 0.4333

[40,49]__ 2__ 0.0667______ 0.5

[50,59]__ 7 __0.2333 _____0.7333

[60,69]__ 4 ___0.1333 ____0.8666

[70,79]___ 3 ____0.1 ______0.9666

[80,89]___ 1 ___0.0333 ____0.9999

A.) What is the frequency of lottery winners of age between 19 and 40?

Frequency = (3 + 10) = 13 winners

B.) What percentage of lottery winners are 70 years or older?

From the relative frequency table = 0.1 (3/30) = (0.1 * 100%) = 10% ;

C.) What is the relative frequency of ages under 40?

(20 - 29) + (30 - 39)

0.1 + 0.3333 = 0.4333

D.) What is the cumulative relative frequency of lottery winners younger than 50?

0.1 + 0.3333 + 0.0667 = 0.5