HELPPPP ASAPPPP PLSSSSS
1 answer:
Answer:
Option C
Step-by-step explanation:
Data for week 1,
$25, $44, $48, $63, $75
Mean of the given data =
= 51
Median of the data set = Middle term of the data set = 48
Range = Highest term - Lowest term
= 75 - 51
= 24
Mode = Most repeated term of the data set = None
Data for week 2,
$35, $35, $48, $62, $75
Mean of the given data =
= 51
Median of the data set = Middle term of the data set = 48
Mode of the data set = Most repeated number of the data set
= 35
Range = 75 - 35 = 40
Option A
"Median and the range of week 1 equal to the median and range of week 2"
False.
Option B
"Median and mode of week 1 are equal to the median and mode of week 2"
False
Option C
"Mean and median of week 1 is equal to the mean and median of week 2"
True.
Option D
"Mean and range of week 1 is equal to the mean and range of week 2"
False.
Option C is the correct option.
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Answer:
x = 63.6
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X and also the area to its left. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to its right.
In this problem, we have that:
Find a value of x that has area 0.01 to its right
This is x when Z has a pvalue of 1-0.01 = 0.99. So it is X when Z = 2.3267.
So x = 63.6