Answer: 5.37
Step-by-step explanation:
Let x = ACT scores.
Given: ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately normal.
i.e. P(X>28)=0.09 (i)
Now,
(ii)
One -tailed z value for p-value of 0.09 =1.3408 [By z-table]
From (i) and (ii)

Hence, the standard deviation = 5.37
I believe it’s 900. Yeah, I think the answer is 900.
Plus a negative value becomes subtraction:
-12 + -23 = -12 -23 = -35
Answer:
5 cm
Step-by-step explanation:
Since 1 inch is 2.5 cm, you'll haft to double that. Making the answer 5 cm.
The correct answer is: Option 15.20
Explanation:
At the end of her last billing the amount = $760
The minimum monthly payment of Janet's card is 2%.
To find the monthly payment, we need to find the 2% of $760.
Therefore,
$760 * 2 / 100 = $15.20 > $10