21.

1. The weights for 12-month-old males are normally distributed with a mean of 22.1 pounds and a standard deviation of 1.8 pounds. Use

the given table to find the percentage of 12-month-old males who weigh more than 24.8 pounds.

1 Click the icon to view the table of z-scores and percentiles..

% of 12-month-old males weigh more than 24,8 pounds.

(Round to two decimal places as needed.)

1: z-Scores and Percentiles

-Score

-4.0

<-3.5

-3.0

-2.9

-2.8

-2.7

-2.6

-2.5

-2.4

-2.3

-2.2

-2.1

-2.0

-1.9

-1.8

-1.7

-1.6

z-Scores and Percentiles

Percentile z-Score Percentile z-Score Percentilez-Score

0.003

-1.0

15.87

0.0

-0.95

17.11

0.05

-0.90

18.41

0.10

-0.85

19.77

0.15

-0.80

21.19

0.20

-0.75

22.66

0.25

-0.70

24.20

0.30

-0.65

25.78

0.35

-0.60

27.43

0.40

-0.55

29.12

0.45

-0.50

30.85

0.50

-0.45

32.64

-0.40

34.46

-0.35

36.32

-0.30

38.21

-0.25

40.13

-0.20

42.07

44.04

46.02

48.01

50.00

0.02

0.13

0.19

0.26

0.35

0.47

0.62

0.82

1.07

1.39

1.79

2.28

2.87

3.59

4.46

5.48

-1.5

6.68

-1.4

8.08

-1.3

9.68

-1.2

11.51

-1.1 13.57

-0.15

-0.10

-0.05

ala

0.0

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.0

50.00

51.99

53.98

55.96

57.93

59.87

61.79

63.68

65.54

67.36

69.15

70.88

72.57

74.22

75.80

77.34

78.81

80.23

81.59

82.89

84.13

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

Percentile

86.43

88.49

90.32

91.92

93.32

94.52

95.54

96.41

97.13

97.72

98.21

3.5

4.0

98.61

98.93

99.18

99.38

99.53

99.65

99.74

99.81

99.87

99.98

99.997