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Contact [7]
3 years ago
14

Any help plz I don’t really understand this

Mathematics
1 answer:
Wewaii [24]3 years ago
8 0
Look in ur textbook the back has all answers.
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Question 9 unsaved the starting salaries of individuals with an mba degree are normally distributed with a mean of $54,000 and a
ra1l [238]

Unsaved?


Anyway, 60,000 is one standard deviation above the mean. By the 68-95-99.7 rule 68% of the probability is between -1 and +1 standard deviations, so 34% between 0 and 1 sigma so 50%-34%=16% above one sigma.


Answer: 16%



7 0
3 years ago
A bowl has 8 green grapes and 15 red grapes. Henry randomly chooses a grape, eats it, and then chooses another grape. What is th
Dmitry_Shevchenko [17]

Answer:

About 41.5%

Step-by-step explanation:

<em>Given:</em>

<em>A bowl has 8 green grapes and 15 red grapes. Henry randomly chooses a grape, eats it, and then chooses another grape. </em>

<em>To Find:</em>

<em>What is the probability that both grapes are red?</em>

<em>Answer choices:</em>

<em>about 39.7% </em>

<em>about 41.5%</em>

<em> about 42.5% </em>

<em>about 44.5%</em>

<em>Solution:</em>

<em>Since, there are 8 green grapes and 15 red grapes, the total number of grapes is 23 . </em>

<em>As the red grapes are 15.. </em>

<em>Thus, </em>

<em>The probability of choosing a red grape the first time is 15/23.</em>

<em>Because out of the total 23 grapes only 15 were red grape.</em>

<em> The probability of choosing the red grape the second time will be 14/22. Because the number of red grapes has already decreased by one and so is the total number of grapes after first choice</em>

<em>Hence, the probability of choosing or eating two red grapes will be :</em>

<em>15/23×14/22 </em>

<em>=105/253 </em>

<em>=0.415</em>

<em>= 41.5% </em>

<em>Therefore, the probability that both grapes are red is about 41.5%</em>

<u><em>Kavinsky</em></u>

4 0
2 years ago
2+2=??? I will give brainliest<br> PLEASE HELP!!
Gnesinka [82]

Answer:

4 is the correct answer

Step-by-step explanation:

???

6 0
3 years ago
Read 2 more answers
Please help :( I’ve been on this fit awhile
likoan [24]
Okay think the answer b
3 0
2 years ago
Question 4 of 10
pickupchik [31]

Answer:

If a radius of a circle bisects a chord, then it is perpendicular to that chord.

So. A. perpendicular

3 0
3 years ago
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