The ages of a sample of 25 salespersons are as follows: 21 24 24 26 27 29 31 31 31 32 34 34 35 35 37 38 41 41 43 45 45 45 47 53 56 Manually draw a histogram with five classes using range interval from 20 to 60. How many observations fall into the fourth class? What class has the highest frequency? There are 7 observations in the fourth class. The 3rd class has the highest frequency. O There are 2 observations in the fourth class. The 2nd class has the highest frequency. There are 6 observations in the fourth class. The 3rd class has the highest frequency. There are 3 observations in the fourth class. The 2nd class has the highest frequency. There are 5 observations in the fourth class. The 3rd class has the highest frequency. There are 4 observations in the fourth class. The 4th class has the highest frequency. O There are 4 observations in the fourth class. The 2nd class has the highest frequency. There are 5 observations in the fourth class. The 4th class has the highest frequency.The distribution of heights of American women aged 18 to 24 is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman six feet (72 inches) tall. Round your answer to two decimal places. O 1.33 O 1.04 O 2.60 O 4.11 O -1.25Consider the following artificial data set: 5, - 3, 0, 1, 0, 10, -2, -3, -1, 3 Calculate the fences and list the outliers. Round your answer to two decimal places. O Fences: [-5,15]. Outliers: none O Fences: [-5, 15]. Outliers: -5 O Fences: [-3,7]. Outliers: -5, 10 O Fences: [-9,7]. Outliers: 10 O Fences: [-4.5, 12.5]. Outliers: -5