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ValentinkaMS [17]
2 years ago
7

The final exam scores in a statistics class were normally distributed with a mean of

Mathematics
1 answer:
IRISSAK [1]2 years ago
4 0

Answer:

68.27%

Step-by-step explanation:

By the Empirical Rule, as 65% and 75% are both one standard deviation apart from the mean of 70%, then this represents 68.27% of the data.

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Please Help! I will give you the brainiest and a lot of points!
posledela

Answer:

1. 23/20 miles, 2. 7/20 miles

Step-by-step explanation:

1. Total distance = 3/4 + 2/5

= (3*5)/(4*5) + (2*4)/(5*4)

= 15/20 + 8/20

= 23/20

= 1 3/20 miles

2. Difference between walked miles and jogged miles = 3/4 - 2/5

= 15/20 - 8/20

= 7/20 miles

4 0
3 years ago
A_________is a common multiple of two or more denominators
Bogdan [553]

Answer:

(LCM)

Step-by-step explanation:

Least common multiple = LCM

HOPE THIS HELPS :)

4 0
3 years ago
Help on number 3 only use Pythagorean thym I give brainliest
enot [183]

Answer: 10.8

Step-by-step explanation: the pythagorean theorem is A sqaured or A^2 + B^2 or B squared equals C^2 or C squared so 10 squared as is the first number is 100 and 4 squared as is the second number is 16 add the two to get 116 but since your answer is squared you need to take the square root which means your answer is 10.7703296143 but since your rounding to the tenths place your answer is 10.8

5 0
3 years ago
There are 150 visitors on the first day of a exhibition The number of visitors increases by 10% on the second day on the third d
Sliva [168]

Answer:

hay a what's up how are you actually I am also beginning from today only and I am happy because

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7 0
3 years ago
At a family reunion, each of Sana aunts and uncles is getting photographed once, The aunts are taking pictures in groups of5 and
yaroslaw [1]

This question is based on least common multiple method.

As given in the question,

Aunts are taking pictures in group of = 5

Uncles are taking pictures in group of = 10

So we have been asked what is the minimum number of aunts Sana have.

As we have been given that the number of aunts and uncles is equal so to find the minimum number of aunts we will apply the least common multiple method.

So we get LCM of 5,10 as 10

Hence there are minimum 10 aunts.


3 0
3 years ago
Read 2 more answers
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