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d1i1m1o1n [39]
2 years ago
7

The scatter plot shows the relationship between the number of hours spent practicing piano per week and the number of pieces of

music the student can play: 
Part A: What is the group of points labeled T called? What is the point labeled R called? Give a possible reason for the presence of point R.
  Part B: Describe the association between the number of hours practiced each week and the number of pieces a piano student can play. Will give brainyist to person who awnsers BOTH PARTS
Mathematics
1 answer:
zhannawk [14.2K]2 years ago
7 0

Can i please get an image and i will be glad to help :)


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Motorola used the normal distribution to determine the probability of defects and the number
vovangra [49]

Answer:

a.P<x<9.85 orx>10.15)=0.3174, Total defects=317.4

b.p=0.0026,total defects=2.6

c.Less of the items produced will be classified as defects.

Step-by-step explanation:

a.The standard score,z, is esentially x reduced by process mean then divided my process standard deviation.

\mu=10,\sigma=0.15\\Therefore:-\\z=\frac{x-\mu}{\sigma}=\frac{9.85-10}{0.15}\approx-1.0\\z=\frac{x-\mu}{\sigma}=\frac{10.15-10}{0.15}\approx+1.0\\P(x10.15)=P(Z+1.0)\\=2P(Z

Total defects=Production*Probability

                      =0.3174*1000

                       =317.4

b. \mu=10,\sigma=0.05

therefore:-

z=\frac{x-\mu}{\sigma}=\frac{9.85-10}{0.05}\approx-3.0\\z=\frac{x-\mu}{\sigma}=\frac{10.15-10}{0.05}\approx+3.0\\\\=P(x10.15)=P(Z+3.0)\\=2P(Z

Defects=Probability*Production

            =0.0026*1000

             =2.6

c.Reducing process variation results in a significant reduction in the number of unit defects.

3 0
3 years ago
Ahmed was invited at a party at his friend’s place at 20:00 hours. He left the house at 17:00 hours and travelled in his car at
WARRIOR [948]

Answer:

yes he did make it, when he left at 17:00 he had 3:00 hours to make it to the party. if you divide 200/80=2.5 meaning he's able to make it in 2.5 hours.

3 0
2 years ago
Kylie starts with $145 in her piggy bank. Each month she adds $20.
djverab [1.8K]

Kylie's first month collection, a1= $ 145

Second month collection , a2= $145+ 20

Third month collection, a3  = $145 +2*20

.

.

.

.

so for n months collection = an-1+20

We get an= 20 + an-1  and a1=145


4 0
3 years ago
Could anyone help with this, im terrible at geometry haha
bekas [8.4K]

Answer:

10.90⁰

11.126⁰

12.54⁰

13.180⁰

Step-by-step explanation:

CDE is 180⁰ because it is a straight line

3 0
2 years ago
Read 2 more answers
1.Which coordinates are not of the vertices of the feasible region for the system of inequalities?
astraxan [27]
2.   I think the answer is 24

subracting the last 2 inequalities we get

6x + 7y <= 42
3x + 2y  <= 18    subtract:_-
3x + 5y <= 24
3 0
3 years ago
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