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Veseljchak [2.6K]
3 years ago
5

In a survey, 31 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped

with a mean of $49 and standard deviation of $8. Find the margin of error at a 80% confidence level. Give your answer to two decimal places.
Mathematics
1 answer:
Andrei [34K]3 years ago
7 0

Answer:

Step-by-step explanation:

i would help you but i dont know , sorry

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Ellen bought 18 boxes of paper clips. Each box had 150 paper clips. How many paper clips did Ellen buy
r-ruslan [8.4K]

Answer:

Ellen bought 2700 paper clips.

Step-by-step explanation:

Total boxes=18

Paper Clips in 1 box=150

Total paper clips=18×150

                           =2700

7 0
3 years ago
Read 2 more answers
the endpoints of the side of rectangle ABCD in the coordinate plane are A (3,7)and B(4,1).Find the equation of the line that con
Elden [556K]

Answer:

1,6


Step-by-step explanation:


5 0
3 years ago
There are six balls in the bag. Two are basketballs, three are playground balls, and one is a soccer ball. What is the probabili
aleksandr82 [10.1K]

Answer:

\frac{1}{6}=0.16

Step-by-step explanation:

Given : There are six balls in bag

             Basketballs=2

             Playground balls =3

             Soccer ball =1

To Find : the probability that if you pick one of the balls without looking, it will be a soccer ball

Solution :

Total no. of balls = 6

No. of soccer balls = 1

Probability = favorable outcomes / total outcomes

Since total outcomes = total no. of balls =6

And favorable outcome = no. of soccer balls = 1

Thus , Probability of getting soccer ball = \frac{1}{6}

Hence the probability that if you pick one of the balls without looking, it will be a soccer ball:

\frac{1}{6}=0.16



7 0
3 years ago
A hippopotamus weights 4 tons.feeding instructions are given in for weights in pounds.how many pounds does the hippopotamus weig
lys-0071 [83]
It's ....c 8000 lbs because there is 2000 lbs in a ton so you do 4x2 which equals 8 then you add your 3 zeros. Hope I was able to help.
6 0
3 years ago
Y=fx) = 8x<br> Find f(x) when x = 1/3<br> Enter the correct answer.
solniwko [45]

Answer:

f(3)=2\frac{2}{3}

Step-by-step explanation:

f(x)=8x\\f(3)=8(\frac{1}{3})\\f(3)=\frac{8}{3} \\f(3)=2\frac{2}{3}

Hope this helps!

4 0
3 years ago
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