Answer:
$301 - $397
Step-by-step explanation:
Using the Empirical rule
1) 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .
2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
3)99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .
From the above question,
Mean = 349 , standard deviation = 24.
Confidence interval = 95%
Using 2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
μ – 2σ
= 349 - 2(24)
= 349 - 48
= 301
μ + 2σ
349 + 2(24)
= 349 + 48
= 397
Therefore, according to the standard deviation rule, approximately 95% of the students spent between $301 and $397 on textbooks in a semester.
The answer is D thirteen multiplied by h is 13h. The word "is" typically means = so 13h=104. to solve for this you want to isolate the h on one side of the equation. to do this we need to get rid of the 13 and move it on the other side of the equation. the new equation is h=104÷13. So, h=8. Hope this helps!
No because (-2, -5) is negative and the y coordinate needs to be positive.
Answer:
5 withdrawals
Step-by-step explanation:
Since $10.50 ends in $0.50, you know that she must have made at least one $2.50 transaction.
10.50 - 2.50 = 8
8/2 = 4 (she made four $2 transactions)
She made 4 $2 transactions and 1 $2.50 transaction.
4 + 1 = 5
She made 5 transactions total.
Answer:
D = 4.2
Step-by-step explanation:
-5.5 ( d - 2 ) = - 12.1
-5.5d + 11 = - 12.1
11 + 12.1 = 5.5d
23.1 = 5.5d
d = 23.1 ÷ 5.5
d = 4.2
