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Anastasy [175]
2 years ago
5

A student studying for a vocabulary test knows the meanings of 16 words from a list of 26 words. If the test contains 10 words f

rom the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)
Mathematics
1 answer:
gayaneshka [121]2 years ago
4 0
To get the probability that at least 8 of the words on the test are words that students know we need to do the following calculations.

<span>=[C(16,8)*C(10,2) + C(16,9)*C(10,1) + C(16,10)*C(10,0)] / C(26,10)
</span>
=0.132 
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A
Charra [1.4K]

Answer:

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8 0
2 years ago
How can one determine the median of a data set?
rjkz [21]

Answer:

A

Step-by-step explanation:

The median value on a data set is the value that accumulates 50% of the values at its left and the other 50% at its right. In other words, it is the value that divides the data set in two halves. Lets see each option and find this value:

B: By doing it we are finding the mode, the value that is repeated most. This is incorrect!

C: By doing this we are finding the mean, the average or the arithmetic mean. This is incorrect!

D: This gives us the range, not the median. This is incorrect!

Finally, A is correct, as this is what we said at the beginning of the text. Ordering the values and finding the one the splits the data set in 2 equal parts is the median.

7 0
3 years ago
Please answer quickly!
Serhud [2]

Answer:

tanx

Step-by-step explanation:

tan=TOA

opp/adj

x=p/r

4 0
2 years ago
The probability of Samantha scoring an A on a geology test (event A) is 0.46, and the probability of Judith scoring an A on the
bazaltina [42]
It may be observed from the given that the probability of the both Samantha and Judith scoring an A is the product of the individual probabilities of Samantha and Judith. This means that the events are independent. Thus, the answer is letter A. 
8 0
2 years ago
Read 2 more answers
Kathy, who plans conferences and parties for a resort, earns $342.22 weekly. Her group medical insurance costs $4,650.00 a year,
romanna [79]

Answer:

Weekly cost= $26.83

Step-by-step explanation:

Giving the following information:

Her group medical insurance costs $4,650.00 a year, and the company pays 70% of the costs.

<u>First, we need to calculate how much she pays a year:</u>

Cost per year= 4,650*0.3

Cost per year= $1,395

<u>Now, the weekly cost:</u>

Weekly cost= 1,395/52

Weekly cost= $26.83

5 0
2 years ago
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