a student's 10 scores on 10-point class quizzes include a 6, a7, a4, five 9s, an 8, and a 10. The student claims that her average grade on quizze is 9 because most of her scores are 9s.
Nope.
Find the mean or the average by adding all the scores and dividing by 10.
a student's 10 scores on 10-point class quizzes include a 6, a7, a4, five 9s, an 8, and a 10. The student claims that her average grade on quizze is 9 because most of her scores are 9s. Is this correct? explain it please.
I'll explain it after you follow my directions above.
Last month, 10 patients between the ages of 11 and 13 were seen in their pediatrician's clinic. their height were recorded as 50, 56, 59,51,53,51,50,52,54,and 51 inches. Determine mean, median and mode.
Find the mean as I directed you above.
80/10=8
Right! The average of the scores is 8.
9 is both the mode and the median.
the the mode is the most repeated number,the student had confused the mode and mean
To determine whether the student's claim is accurate, we need to find the average (mean) of her quiz scores. The average is obtained by summing up all the scores and then dividing the sum by the total number of scores.
In this case, the student's scores are as follows: 6, 7, 4, 9, 9, 9, 9, 9, 8, and 10.
To find the average, we sum up these scores:
6 + 7 + 4 + 9 + 9 + 9 + 9 + 9 + 8 + 10 = 80
Next, we divide the sum by the total number of scores, which is 10:
80 / 10 = 8
Therefore, the average grade on the quizzes is 8, not 9. The student's claim that her average is 9 is incorrect.