The following are the scores in Math of the samples 15 Grade 10 students. 60,61,58,70,62,74
75,78,80,68,85,86
80,65,70
Compute the following:
a. Sample mean
b. Sample variance
c. Sample standard deviation​

Regular price is $77.00 and the discount is 5% find the sale price

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Nikita wants to apply for student aid to fund her college education. arrange the steps involved in nikita’s application for financial aid