Question

Max is analyzing the test scores he earned in his biology class. The class had 7 tests, on which he scored 85, 93, 78, 90, 88, 97, and 88. What is the mean of the data set? What is the median of the data set? What is the mode of the data set?

Answer 1

Hello!

First of all, we need to find the mean. To find it, we add up all of the scores and divide by the number of tests.

85+93+78+90+88+97+88=619

619/7≈88.43

Mean≈88.43

Now we need to find the median. First we order the numbers from least to greatest.

78,85,88,88,90,93,97

Now we have to find the middle number. As you can see, the number in the middle is 88.

Median: 88

Finally, we need to find the mode. This is the number that appears the most. As you can see, 88 appears twice, while all of the others appear only once. Therefore, our mode is 88.

Mode:88

I hope this helps!

Answer 2

max has scored 85,93,78,90,88,97,88 in 7 test.

we need to find mean ,median ,mode for this data set .

$mean =sum of the all observations /total number of observations$

$mean=(78+80+85+88+88+90+97)/(7)=606/7=86.57we know that to find median we have check first whether we have odd or even number of terms .we have 7 data set which means odd.so the median=[tex] (n+1)/2$

$(7+1)/2=4$.

4th term is the median of this data set.

we know that 88 is the 4th data as we arranged in ascending order.

mode is the maximum frequency of data.

we know that 88 was repeated two times so 88 is the mode of this data set