Pls help me im lost.

Mathematics

1 answer:

Zanzabum3 years ago

5 0

Answer:

Step-by-step explanation:

Line plots are diagrams that show the frequency of data on a number line. ... A box-and-whisker plot is a diagram that summarizes data by dividing it ... For Exercises 1 and 2, use the table below. 1. Make a frequency table of the data. 2. Use your ... for Math Exam. 3. 7. 10. 0. 2. 12. 18. 3. 1. 15. 10. 11. 8. 5. 9. 8. 12. 6. 8. 12 ...

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A cone has radius 3.8 cm and height 7.6 cm. The radius and the height are doubled. Which of the following describes the effect o

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The volume is multiplied by 8.

Step-by-step explanation:

The volume of a cone with a radius of 3.8 and a height of 7.6 is 114.92. Now let’s double them, the results come out to be 919.39, we divide these by each other and we get roughly 8 when you round. Therefore, your answer is 8.

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2 years ago

Read 2 more answers

16. From past experience, a company has found that in cartons of transistors, 92% contain no defective transistors, 3% contain o

Lynna [10]

Answer:

E(x)=0.15

V(x)=0.3075

S(x)=0.5545

Step-by-step explanation:

The mean of a discrete variable is calculated as:

$E(x)=x_1*p(x_1)+x_2*p(x_2)+...+x_n*p(n)$

where $x_1,x_2,...,x_n$ are the values that the variable can take and $p(x_1),p(x_2),...,p(x_n)$ are their respective probabilities.

So, if we call x the number of defective transistors in cartons, we can calculate the mean E(x) as:

$E(x)=(0*0.92)+(1*0.03)+(2*0.03)+(3*0.02)=0.15$

Because there are 0 defective transistor with a probability of 0.92, 1 defective transistor with a probability of 0.03, 2 defective transistors with a probability of 0.03 and 3 defective transistors with a probability of 0.01.

At the same way, the variance V(x) is calculated as:

$V(x)=E(x^2)-(E(x))^2$