Answer:

Step-by-step explanation:

You arrange the numbers from lowest to highest,And you cover the numbers untill your left ith the number in the middle.
Answer:
a) Sample mean: 48.71
Sample median: 48.3
Sample variance: 5.41
Sample standard deviation: 2.37
Step-by-step explanation:
a) Sample mean:

Sample median: M=48.3
Note: I order the data increasingly and take the value N / 2 = 40. In this way there are 39 values above and 39 values below the median.
Sample variance:

Sample standard deviation

b)
5.03 x 10^6 ?
I’m not sure bout this but maybe ask your teacher ?
Answer:

Step-by-step explanation:
