The test scores for a math class are shown below. 81, 84, 82, 93, 81, 85, 95, 89, 86, 94 34. what are the mean, median, and mode of the data set?

ten scores in order:

81

81

82

84

85

86

89

93

94

95

sum = 870

mean = 870/10 = 87

median 85.5 (5 above, 5 under)

mode = 81 (there are two of them)

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?