Question

The data points represebt the number of swimmers at City Pool compared to the outside temperature (66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50) Use the regression equation to determine how many swimmer will be at the pool when the temperature is 88F? Round to the nearest whole number

Answer 1

Answer:

44 swimmers

Step-by-step explanation:

Given the data points :

66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)

Temperature X:

66

71

72

75

78

80

82

86

87

90

Number of swimmers Y:

8

23

16

30

35

24

37

37

42

50

Using the online regression calculator :

The regression model obtained is ;

ŷ = 1.5045X - 88.2056

Where

1.5045 = gradient or slope

-88.2056 = intercept

x = independent variable

y = dependent variable

Number of swimmers when temperature = 88

y = 1.5045(88) - 88.2056

y = 44.19

y = 44 (nearest whole number)