An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 85 and in math 85 The overall results on the economics exam had a mean of 75 and a standard deviation of 10 while the mean math score was 70 with a standard deviation of 12 On which exam did she do better compared with the other students? Since she scored enter your response here standard deviations ▼ below above the mean in economics and enter your response here standard deviations ▼ below above the mean in mathematics, she did better on the ▼ mathematics economics exam.
An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 85 and in math 85 The overall results on the economics exam had a mean of 75 and a standard deviation of 10 while the mean math score was 70 with a standard deviation of 12 On which exam did she do better compared with the other students? Since she scored enter your response here standard deviations ▼ below above the mean in economics and enter your response here standard deviations ▼ below above the mean in mathematics, she did better on the ▼ mathematics economics exam.
An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 85 and in math 85 The overall results on the economics exam had a mean of 75 and a standard deviation of 10 while the mean math score was 70 with a standard deviation of 12 On which exam did she do better compared with the other students? Since she scored enter your response here standard deviations ▼ below above the mean in economics and enter your response here standard deviations ▼ below above the mean in mathematics, she did better on the ▼ mathematics economics exam.
An incoming MBA student took placement exams in economics and mathematics. In economics, she scored
85
and in math
85
The overall results on the economics exam had a mean of
75
and a standard deviation of
10
while the mean math score was
70
with a standard deviation of
12
On which exam did she do better compared with the other students?
Since she scored
enter your response here
standard deviations
▼
below
above
the mean in economics and
enter your response here
standard deviations
▼
below
above
the mean in mathematics, she did better on the
▼
mathematics
economics
exam.
Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...
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