All the 100 students engaged in the experiment were picked on the basis that all the students of the university have a chance of being selected. The selected participants must have represented the whole university well.

So, having a 95% confidence interval that the experiment might have atmost 5% error prone is statistically enough and not too wide to give an accurate estimate.

3 0

3 years ago

Frank kicks a soccer ball off the ground and in the air, with an initial velocity of 30 feet per second. Using the formula H(t)

Trava [24]

The answer is A or 14.1

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3x%2B2%7D%7B5%7D%3D31" id="TexFormula1" title="\frac{3x+2}{5}=31" alt="\frac{3x+2}{5

bixtya [17]

Answer:

x = 51

Step-by-step explanation:

Solve for x:

(3 x + 2)/5 = 31

Multiply both sides of (3 x + 2)/5 = 31 by 5:

1 (3 x + 2) = 5×31

(5 (3 x + 2))/5 = 5/5×(3 x + 2) = 3 x + 2:

3 x + 2 = 5×31

5×31 = 155:

3 x + 2 = 155

Subtract 2 from both sides:

3 x + (2 - 2) = 155 - 2

2 - 2 = 0:

3 x = 155 - 2

155 - 2 = 153:

3 x = 153

Divide both sides of 3 x = 153 by 3:

(3 x)/3 = 153/3

3/3 = 1:

x = 153/3

The gcd of 153 and 3 is 3, so 153/3 = (3×51)/(3×1) = 3/3×51 = 51:

Answer: x = 51

6 0

3 years ago