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3 years ago

1. A manufacturer of phones realizes a profit of $450 for each phone sold. However, defective phones cannot be

Mathematics

1 answer:

USPshnik [31]3 years ago

3 0

Answer:

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I need help finding the mean, median, and mode(s) I need help with number 7

natta225 [31]

Answer:

the mean is 57.5 the median is 44.5 and the mode is 47

Step-by-step explanation:

the mode is 47 cuz it appeared twice. the median is 57.5 bc 47+147+24+47+38+42=345 and 345/6 is 57.5

7 0

2 years ago

Draw a number line fom -5 to +5 and mark all positive numbers

Gemiola [76]

Answer:

Step-by-step explanation:

i cant draw a number line but we know that integers above 1 are positive. So 1,2,3,4, and 5 are positive and marked

8 0

2 years ago

Read 2 more answers

Help please, I need it

Helen [10]

Partial Answer:

For #10 the solutions are 2 and 5

Step-by-step explanation:

Solutions for an equation can be x-intercepts, or where it touches the x or horizontal line. The equation in #10 touches the x line at 2 and 5.

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2 years ago

HELP PLEASE 18 POINTS

Mrrafil [7]

Answer:

75000 centigrams

Step-by-step explanation:

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3 years ago

A continuous random variable X has cdf F(x)=x² b (a) Determine the constants a and b. for a < 0, for 0 < x < 1, for x &

Karolina [17]

Any proper CDF $F(x)$ has the properties

• $\displaystyle \lim_{x\to-\infty} F(x) = 0$

• $\displaystyle \lim_{x\to+\infty} F(x) = 1$

so we have to have a = 0 and b = 1.

This follows from the definitions of PDFs and CDFs. The PDF must satisfy

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = 1$

and so

$\displaystyle \lim_{x\to-\infty} F(x) = \int_{-\infty}^{-\infty} f(t) \, dt = 0 \implies a = 0$

$\displaystyle \lim_{x\to+\infty} F(x) = \int_{-\infty}^\infty f(t) \, dt = 1 \implies b = 1$

8 0

2 years ago