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2 years ago

If the word is a proper noun, choose the answer that begins with a capital letter. If the word is a common noun, choose

Mathematics

1 answer:

ad-work [718]2 years ago

4 0

School is not a a proper noun so it will start with a lowercase letter

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What is the standard deviation of the following data? If necessary, round your answer to two decimal places.

blsea [12.9K]

Total numbers=10
mean(average)=14.8
standard deviation=3.4254
variance_standard deviation)=11.73333
population standard deviation=3.24962
variance(population standard deviation)=10.56

3 0

2 years ago

Choose the correct ordered one

Alik [6]

A. 6-4=2 YES
   12 + 12 = 14 NO
B. 5-3=2 YES
    10+9 = 14 NO
C. 3-1 = 2 YES
6+3 = 14 NO
D. 4-2= 2 YES
     8+6 = 14 YES
THE ANSWER IS D

6 0

3 years ago

Read 2 more answers

The probability density function of the time you arrive at a terminal (in minutes after 8:00 A.M.) is f(x) = 0.1 exp(−0.1x) for

Blababa [14]

$f_X(x)=\begin{cases}0.1e^{-0.1x}&\text{for }x>0\\0&\text{otherwise}\end{cases}$

a. 9:00 AM is the 60 minute mark:

$f_X(60)=0.1e^{-0.1\cdot60}\approx0.000248$

b. 8:15 and 8:30 AM are the 15 and 30 minute marks, respectively. The probability of arriving at some point between them is

$\displaystyle\int_{15}^{30}f_X(x)\,\mathrm dx\approx0.173$

c. The probability of arriving on any given day before 8:40 AM (the 40 minute mark) is

$\displaystyle\int_0^{40}f_X(x)\,\mathrm dx\approx0.982$

The probability of doing so for at least 2 of 5 days is

$\displaystyle\sum_{n=2}^5\binom5n(0.982)^n(1-0.982)^{5-n}\approx1$

i.e. you're virtually guaranteed to arrive within the first 40 minutes at least twice.

d. Integrate the PDF to obtain the CDF:

$F_X(x)=\displaystyle\int_{-\infty}^xf_X(t)\,\mathrm dt=\begin{cases}0&\text{for }x$

Then the desired probability is

$F_X(30)-F_X(15)\approx0.950-0.777=0.173$

7 0

3 years ago

Which pair of numbers does the square root of 5 fall between

Olenka [21]

2.2 and 2.3 SO Take 2/5 and that what you get

8 0

2 years ago

Read 2 more answers

Write 2 3/4% as a completely reduced fraction

grandymaker [24]

Divide 2 3/4% by 100% to obtain the fraction 0.0275. This decimal fraction can be reduced to 11/400.

4 0

2 years ago