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Klio2033 [76]
3 years ago
7

The number of messages that arrive at a Web site is a Poisson distributed random variable with a mean of 5 messages per hour. Ro

und your answers to four decimal places (e.g. 98.7654). (a) What is the probability that 5 messages are received in 1 hour
Mathematics
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

BSHGHXSJ

Step-by-step explanation:

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A restraunt is making a large amount of salad dressing. the recipe use 72 ounces of vinegar and 126 ounces of oil.what is the ra
Lemur [1.5K]
Oil to vinegar = 126:72 reduces to 7:4
5 0
3 years ago
a teacher plans a simulation to estimate the probability that a student will pick a vowel out of a bag of 26 tiles, each with a
Alex Ar [27]

Answer:

Yes

Step-by-step explanation:

Given that a teacher prepares 26 tiles with 5 vowels numbered 1 and 21 consonants numbered 2.

The probability for drawing vowel =\frac{5}{26}

Prob for consonant =\frac{21}{26}

If number of trials is atleast 30 we can expect reliable results.

Here the results are recorded for 120 times at random.

Since number of trials is large, we can expect a reliable and accurate results representing the actual probability.

This is because more the number of trials, the less would be the margin of error i.edeviationfrom the expected probability would be minimum

8 0
4 years ago
Read 2 more answers
Find the sum of the first 42 terms of the following series, to the nearest
balandron [24]

Answer:

Step-by-step explanation:

Find the sum of the first 42 terms of the following series, to the nearest integer.

2,7,12

Solution

The sum is given by  

SUM_n=n/2*(a_1+a_n)

a_n=a_1+(n-1)d

a_1=2,   n=42,     d=5

The 42nd term is therefore given by  

a_42=2+(42-1)5=207

SUM_42=42/2*(2+207)=21*209=4389

The sum of the first 42 terms of the series, therefore, is 4389

5 0
3 years ago
Please help! i do not understand !
cluponka [151]

Answer:

C

Step-by-step explanation:

Know that two angles added equals 180

3 0
3 years ago
Read 2 more answers
I just need to find this data set out, please anyone?​
rewona [7]

Answer:

Ok so...

Mean: 68.76

Median: 72

Range: 85

Step-by-step explanation:

3 0
3 years ago
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