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Anastaziya [24]

3 years ago

13

4. (10 pts) A study is conducted to estimate the difference in the mean occupational exposure to radioactivity in computer scien

ce students in the years 2000 and 2008. These data based on independent samples of students for the 2 years are obtained:

1 answer:

IceJOKER [234]3 years ago

5 0

Answer:

ddd

Step-by-step explanation:

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The set of numbers in the form startfraction a over b endfraction a b, where a and b are integers and bnot equals≠0, is called

krek1111 [17]

Rational Number are set of numbers that can be written as a/b where a and b are integers, but b is not equal to 0; an integer or a fraction; for example: 6 can be expressed as 6/1 and 0.5 can be expressed as 1/2.

7 0

3 years ago

Read 2 more answers

SOMEONE HELP WITH THIS PLZZ!!

Natali5045456 [20]

Answer:

x=90 y=45

Step-by-step explanation:

Answer is C

y and 45 are vertical angles

x=90 (right angle)

3 0

2 years ago

In a particular course, it was determined that only 70% of the students attend class on Fridays. From past data it was noted tha

siniylev [52]

Answer: Probability that students who did not attend the class on Fridays given that they passed the course is 0.043.

Step-by-step explanation:

Since we have given that

Probability that students attend class on Fridays = 70% = 0.7

Probability that who went to class on Fridays would pass the course = 95% = 0.95

Probability that who did not go to class on Fridays would passed the course = 10% = 0.10

Let A be the event students passed the course.

Let E be the event that students attend the class on Fridays.

Let F be the event that students who did not attend the class on Fridays.

Here, P(E) = 0.70 and P(F) = 1-0.70 = 0.30

P(A|E) = 0.95, P(A|F) = 0.10

We need to find the probability that they did not attend on Fridays.

We would use "Bayes theorem":

$P(F\mid A)=\dfrac{P(F).P(A\mid F)}{P(E).P(A\mid E)+P(F).P(A\mid F)}\\\\P(F\mid A)=\dfrac{0.30\times 0.10}{0.70\times 0.95+0.30\times 0.10}\\\\P(F\mid A)=\dfrac{0.03}{0.695}=0.043$

Hence, probability that students who did not attend the class on Fridays given that they passed the course is 0.043.

8 0

3 years ago

Bir işi 5 işçi 8 günde bitirdi aynı işi 4 işci kac gunde bitirir

Aleonysh [2.5K]

tam olmasada yaklaşık 6.5 günde bitter

8 0

3 years ago

What are all of the rational zeros of the function g(x) = x^4- x^3+ 4x^2- 4x?

Darya [45]

Yo sup??

We can solve this questions by trying option verification.

We observe that 0 is common among all the options so 0 has to be a zero of the function.

when x=1

g(1)=1-1+4-4=0

Therefore 1 is also a zero of the function.

Since 1 is not there is option 2 and 3, hence our answer is either option 1 or 4

when x=2

g(2)=16-8+16-8=0

Therefore 2 is also a zero of the function.

Hence the correct answer is option D ie 0,1,2

Hope this helps.

6 0

3 years ago