Given:

425 school children

Teacher : 80
Doctor : 105
Lawyer : 70
Police Officer : 70
Firefighter : 100
Total = 425

After applying Pearson's chi-squared test, it is concluded that this data reflects a real difference in the population.

$x^{2} = summation ((O_i - E_i)^2/E_i)$

6 0

3 years ago

Expand this question. <br><br> 3(x+2)

irakobra [83]

Answer:

3(x+2)

3x+6

Step-by-step explanation:

We should multiply it by 3

3 0

2 years ago

Read 2 more answers

There are 10 decimeters in every meter. If a piece of fabric is 32 decimeters long, how long is it when measured in meters?

lara31 [8.8K]

10 dm = 1 m
32 dm = 32/10 = 3.2 m
Answer: 3.2 m

8 0

3 years ago