Difference between the mean of the data, including the outlier and excluding the outlier is;
B: 0.93
<h3>Mean average</h3>
Her time in minutes for the given months are;
- January = 41.55 minutes
- July = 36. 38 minutes
- Feb = 42.51 minutes
- Aug = 38.48 minutes
- Mar = 43. 01 minutes
- Sept = 41.87 minutes
- Apr = 39. 76 minutes
- Oct = 51.32 minutes
- May = 37. 32 minutes
- Nov = 42.59 minutes
- June = 35.28 minutes
- Dec = 43.71 minutes
Looking at all the numbers, they largely range from 36 to 44 which means that the outlier is 51.32
Total number of minutes with outlier = 493.78 minutes
Number of months = 12
Thus;
Mean with outlier = 493.78/12
Mean with outlier = 41.15 minutes
Mean without outlier = (493.78 - 51.32)/(12 - 1)
Mean without outlier = 40.22 minutes
Thus;
Difference in both means = 41.15 - 40.22
Difference = 0.93
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The code that read two numbers from user input, then, print the sum of those numbers are as follows:
x = int(input("write a number: "))
y = int(input("write another number: "))
print(x + y)
<h3 /><h3>Code explanation</h3>
- The first line of code ask the user for a number input. The integer input is stored in a variable x.
- The second line of code ask the user for another number input . The integer input is stored in a variable y.
- Finally, we print the sum of the user's input.
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The option that is not a correct description of the distribution of the amount spent by the 50 shoppers at the grocery store is D) The distribution is uniform, with all values equally likely.
<h3>What is a stemplot?</h3>
A stemplot is a graphical way of displaying numerical data that uses place value to group the data. The leftmost digits of the data values form the stem, and the rightmost digits form the leaf.
The distribution is symmetric, because the left and right halves of the stemplot are roughly mirror images of each other. The mean and median are both about $25, because the middle value of the data is $25, and the sum of the data values divided by the number of data values is also $25. The distribution is not skewed to the right or left, because there are no long tails or outliers on either side of the peak.
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Complete question
The stemplot displays data on the amount spent by 50 shoppers at a grocery store. Note that the values have been rounded to the nearest dollar.
Which of the following is not a correct description of the distribution of the amount spent by the 50 shoppers at the grocery store?
A) The distribution is symmetric, with a mean and median of about $25. B) The distribution is skewed to the right, with a mean of about $30 and a median of about $25. C) The distribution is skewed to the left, with a mean of about $20 and a median of about $25. D) The distribution is uniform, with all values equally likely.
