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sergij07 [2.7K]
3 years ago
15

a company selling light bulbs claims in its advertisements that its light bulbs’ average life is 1000 hours. In fact, tte lifesp

an of these light bulbs is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours. Use this information to answer Parts A and B below. ANSWER NOW FOR THE BRAINLIEST!!!!!!
Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

you didn't provide the parts A and B

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Alexander is a stockbroker. He earns 14% commission each week. Last week, he sold $6,400 worth of stocks. How much did he make l
erastova [34]

Answer:

In that one week, his commision was $896, over all 52 weeks, he made $46592

Step-by-step explanation:

Need help calculating that? Let me help you. Grab a calculator!

So, he makes 14% commision on any stock he sells. This week, he sold $6,400 worth of stocks, and, hes going to make 14% on it. So, take 6400 and divide that by 14%, and what do you get? $896! So, he made $896 that week. Now, say he made that amount EVERY WEEK. so, all you have to do is know how many weeks are in a year (52) and multiply that by 896, which gives you 46592.

Hope this helped, and brainliest would be amazing ❤️ please let me know if you need anymore help. im happy to help.

4 0
2 years ago
At the school carnival students guessed how many marbles are in a jar. Marlo guessed 57 when it was actually 50. What percent of
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The answer is b he went up 7 when he had to go down 7
4 0
3 years ago
Read 2 more answers
The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.
velikii [3]
A) If you only sample people in a sports supply store, your sample will be biased.  People in a sports supply store are more likely to be people that belong to a gym.
B) While it does not have necessarily the same amount of bias as sampling people in the sports supply store, people that go to a park are generally more likely to be people that exercise or have a gym membership.
C) Taking a random sample of people in town is a good way to get a non-biased sample.  They are not necessarily predisposed to answer your question one way or another.
D) For the same reason as choice A, this is a biased sample.

C is the best choice.
4 0
2 years ago
What is the value of 34 + 3.5(−44÷2)? <br><br>a.−111 <br><br>b.−43 <br><br>c.43 <br><br>d.111
mart [117]

Answer:

b

Step-by-step explanation:

-44÷2=-22

34+3.5*-22= -43

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2 years ago
The dots in the diagram are 1 unit apart. What is the longest segment that can be drawn between two of the dots without
xz_007 [3.2K]

Answer:

the correct answer is C) √5

Step-by-step explanation:

3 0
2 years ago
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