PERFORMANCE TASK #3 Directions. The data below shows the final grades of 40 students in Mathematics 7 of Mr. Herrera in one of his handled sections Complete the table below and compute the mean, median, and mode. Grades Frequency o Midpoint (x) fx
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Answer:
Answer:
madali lang po yan substitte nyo nalng po may formula na nakalagay pero bibigyan kita ng isang solution para diyan.
Mean = 83.63
Step-by-step explanation:
to get the mean we need to divide the summation of frequence(f) and midpoint(x) to the total frequency or the n, which is already been solve in the table.
194 + 278 + 1218 + 902 + 539 + 216 = 3,345
then divide by n or the total frequency which is 40 so,
Mean = 3,345 / 40 = 83.625 or 83.63 when rounding up.
note: The underlined number here are the missing midpoint which means we need to solve for it. to get the missing midpoint we just need to add the grades for example 95 + 99 = 194 then divide by 2 which is 97.
2 + 97 = 99
3 + 92 = 95
14 + 87 = 101
11 + 82 = 93
7 + 77 = 84
3 + 72 = 75
Ikaw na bahala sa median at mode sisiw lang yan basta may formula kaya.