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crimeas [40]
2 years ago
11

42 points I answered the seconed one please help !!!!!!

Mathematics
2 answers:
lora16 [44]2 years ago
6 0

Answer:

given below

Step-by-step explanation:

option 1 : equally likely

option 2 : impossible

option 3: certain

option 4 : unlikely

option 5 : likely

Juliette [100K]2 years ago
4 0
1 equally likely 2 impossible 3 certain 4 unlikely 5 likely
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Male and female high school students reported how many hours they worked each week in summer jobs. The data are represented in t
larisa [96]

Answer:

The correct answer is that the males have a significantly high outlier.

Step-by-step explanation:

If you look at the box plots show the long tails t6hat signify the Q3 outlier

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2 years ago
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Stephen evaluated (6.34 x 10^-7)(4.5 x 10^3). His work is shown below. Which statements describe his errors? Check all that appl
Lostsunrise [7]
We have the following expression:
 (6.34 x 10 ^ -7) (4.5 x 10 ^ 3)
 The solution shown is:
 (6.34 x 10 ^ -7) (4.5 x 10 ^ 3)
 (6.34 x 4.5) (10 ^ -7 x 10 ^ 3)
 28.53 x 10 ^ -4
 -28.53 x 10 ^ 4
 -2.853 x 10 ^ 3
 The errors are:
 A. He changed the sign of the coefficient. A negative exponent does not affect the sign of a coefficient in scientific notation. The sign of the exponent determines the direction the decimal is moved in.
 D. He got the wrong value for the coefficients; 28.53 x 10^-4 is not possible. The coefficients in scientific notation are always greater than 1, but less than 10. 
3 0
4 years ago
Read 2 more answers
A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was 1491 and the standard deviati
Alinara [238K]

Answer:

z(1910)=1.3429\\\\z(1230)=-0.9006\\\\z(2190)=2.2404\\\\z(1380)=-0.3558

Step-by-step explanation:

-Given the population mean is \mu=1491and  the standard deviation is \sigma=312, we calculate the z-scores using the formula:

z=\frac{\bar x-\mu}{\sigma}

#The z-score for 1910 can be calculated as:

z(1910)=\frac{x-\mu}{\sigma}\\\\=\frac{1910-1491}{312}\\\\=\frac{419}{312}\\\\=1.3429

#The z-score for 1230can be calculated as:

z(1230)=\frac{x-\mu}{\sigma}\\\\=\frac{1230-1491}{312}\\\\=\frac{-281}{312}\\\\=-0.9006

#The z-score for 2190 is calculated as follows:

z(2190)=\frac{x-\mu}{\sigma}\\\\=\frac{2190-1491}{312}\\\\=\frac{699}{312}\\\\=2.2404

#The z-score for 1380 is calculated as:

z(1380)=\frac{x-\mu}{\sigma}\\\\=\frac{1380-1491}{312}\\\\=\frac{-111}{312}\\\\=-0.3558

7 0
3 years ago
Lakshmi donates 20% percent of her income to charity.
Andru [333]

Just put 20 over 100 and simplify. The answer is 1/5.

5 0
3 years ago
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Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him ₹ 50 per metre and trousers material
True [87]

Answer:

Step-by-step explanation:

Let x represent the number of meters of shirt material that he bought.

Let y represent the number of meters of trouser material that he bought.

For every 3 metres of the shirt material, he buys 2 metres of the trouser material. It means that

2x = 3y

x = 3y/2

shirt material cost him ₹ 50 per metre and trousers material cost him ₹ 90 per metre. It means that the total cost is

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Selling price for the shirt material is

50x + (12/100 × 50x) = 56x

Selling price for the trouser material is

90y + (10/100 × 90y) = 99y

If his total sale is ₹ 36,600, it means that

56x + 99y = 36600- - - - - - - - 1

Substituting x = 3y/2 into equation 1, it becomes

56(3y/2) + 99y = 36600

Multiplying both sides by 2, it becomes

168y + 198y = 73200

366y = 73200

y = 73200/366

y = 200

x = 3y/2 = 3 × 200/2

x = 300

He bought 200 meters of trouser material

5 0
3 years ago
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