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marin [14]
3 years ago
8

A telemarketer will make 25 calls in one hour. the probability of making a sale on any given call is .09. what is the probabilit

y that he will make at least one sale during the hour?
Mathematics
1 answer:
nignag [31]3 years ago
8 0
Oh really  thats interesting
You might be interested in
You are planning a May camping trip to Denali National Park in Alaska and want to make sure your sleeping bag is warm enough. Th
Goshia [24]

The probability that this bag will be warm enough on a randomly

selected May night at the park is 0.8106 ⇒ answer C

Step-by-step explanation:

You are planning a May camping trip to Denali National Park in Alaska

and want to make sure your sleeping bag is warm enough.

The average low temperature in the park for May follows a normal

distribution

The given is:

1. The mean is 32°F

2. The standard deviation is 8°F

3. One sleeping bag you are considering advertises that it is good for

   temperatures down to 25°F (x ≥ 25)

At first let us find the z-score

∵ z = (x - μ)/σ, where x is the score, μ is the mean, σ is standard deviation

∵ μ = 32°F , σ = 8°F , x = 25°F

- Substitute these values in the rule

∴ z = \frac{25-32}{8}=-0.875

Now let us find the corresponding area of z-score in the normal

distribution table

∵ The corresponding area of z = -0.875 is 0.18943

∵ For P(x ≥ 25) the area to the right is needed

∵ P(x ≥ 25) = 1 - 0.18943 = 0.8106

∴ P(x ≥ 25) = 0.8106

The probability that this bag will be warm enough on a randomly

selected May night at the park is 0.8106

Learn more:

You can learn more about mean and standard deviation in brainly.com/question/6073431

#LearnwithBrainly

3 0
3 years ago
Please help. I just need to get this done lol.
Mice21 [21]

Answer:

1/16

Step-by-step explanation:

6 0
3 years ago
Please help. i don't understand
zaharov [31]

78×.33=25.74 busses are new

25.74+15=40.74 new busses

78+15=93 total busses

40.74/78=0.5223076923= 52% will be new with the new 15 busses

4 0
3 years ago
Please look at attached image to answer question!!! 15 points!!! Answer both to get BRAINLY!
Mkey [24]
I think the first one is 1/200 and the second is 1/125
5 0
3 years ago
Read 2 more answers
Word problem plz help thanks fam 7.04​
givi [52]

g/2 + 4

last option is the answer

4 0
3 years ago
Read 2 more answers
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