Use the accompanying table of z-scores and percentiles to find the percentage of data items in a normal distribution that lie a. below and

b. above a z-score of 0.5.

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

a. The percentage of data items that lie below the z-score is

(Round to two decimal places as needed.)

b. The percentage of data items that lie above the z-score is

(Round to two decimal places as needed.)

1: z-Scores and Percentiles

z-Score

-4.0

-3.5

-3.0

-2.9

-2.8

-2.7

z-Scores and Percentiles

Percentile z-Score Percentile

-1.0

0.003

15.87

-0.95

17.11

-0.90

18.41

-0.85

19.77

-0.80

21.19

-0.75

22.66

-0.70

24.20

-0.65

25.78

-0.60 27.43

-0.55

-0.50

-0.45

-0.40

-0.35

-0.30

-0.25

-0.20

-0.15

-0.10

-0.05

0.02

0.13

0.19

0.26

0.35

-2.6

0.47

-2.5

0.62

-2.4

0.82

-2.3

1.07

-2.2

1.39

-2.1

1.79

-2.0

2.28

-1.9

2.87

-1.8

3.59

-1.7

4.46

-1.6

5.48

-1.5 6.68

-1.4

8.08

-1.3

9.68

29.12

30.85

32.64

34.46

36.32

38.21

40.13

42.07

44.04

46.02

48.01

MAA

0.05

0.10

0.15

z-Score Percentilez-Score

0.0

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1%.

+A

%.

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

0412

1.1

1.2

1.3

1.4

1.5

1.6

1.7

。 00:

1.8

1.9

2.0

2.1

2.2

6

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

24

Percentile

86.43

88.49

90.32

91.92

93.32

94.52

95.54

96.41

97.13

97,72

98.21

98.61

98.93

99.18

99.38

99.53

99.65

99.74

99.81

99.87

00 og