I need help and I’ll give 100 points

Mathematics

1 answer:

svp [43]3 years ago

5 0

Answer:

the student may have made the mistake because the student was paying more attention to how many blocks he was filling in rather than how much he was filling in.

to solve the problem correctly you would just switch the decimals

0.8 > 0.08

0.8 should have 80 blocks filled

0.08 should have 8 blocks filled

You might be interested in

Which of these units should be used to measure the mass of a slice of bread. A) milligram B) centigram C) gram D) kilogram

Nady [450]

Its either grams or milligrams

4 0

3 years ago

The weekly salaries of a sample of employees at the local bank are given in the table below. Employee Weekly Salary Anja $245 Ra

evablogger [386]

The variance for the data is 17,507. 5.

Given

The weekly salaries of a sample of employees at the local bank are given in the table below.

Employee Weekly Salary Anja $245 Raz $300 Natalie $325 Mic $465 Paul $100.

<h3>Variance</h3>

Variance is the expected value of the squared variation of a random variable from its mean value, in probability and statistics.

The mean value of the salaries of employees is;

$\rm Mean= \dfrac{245+300+325+465+100}{5}\\\\Mean=287$

The variance is given by;

$\rm Variance=\sqrt{\dfrac{(245-287)^2 +(300-287)^2 +(325-287)^2 +(465-287)^2 +(100-287)^2}{5-2}} \\\\Variance = 132.316}\\\\On \ Squaring \ both \ the \ sides\\\\Variance^2=17,507. 5$