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Sauron [17]
2 years ago
10

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.6

1 and a standard deviation of 0.45
Using the empirical rule, whatpercentage of the students have grade point averages that are at least 3.96? Please do not round your answer
Mathematics
1 answer:
sergey [27]2 years ago
5 0

Answer:

Below.

= 99.7%

= 100 - 99.7%/2

= 0.3/2

= 0.15%

100% - 0.15%

= 99.85%

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Can somebody help me extra points<br> Complete the statement below about the two figures.
Katena32 [7]

Answer:

NOT CONGRUENT - DIFFERENT

Step-by-step explanation:

For triangles to be congruent the angles have to be the same, in other words, any transformation would work, but a completely different triangle would not.

6 0
2 years ago
What's the answer to 22+4y-14=0
Gwar [14]
Y=-2 You combine like terms which would be -14 and 22. 22-14=8. Then you subtract that from 0. 0-8=-8. Then divide -8 by 4y. -8÷4=-2
7 0
3 years ago
Use the following information for problems 1 – 3. Suppose you sign a contract for an annual salary of $50,000 with a guaranteed
erik [133]

Initial salary =  $50,000 .

Rate of raise = 5% each year.

Therefore, each next year salary would be 105% that is 1.05 times.

5% of 50,000 = 0.05 × 50000 = 2500.

Therefore raise is $2500 each year.

According to geometric sequence first term 50000 and common ratio 1.05.

Applying geometric sequence formula

a_n = ar^{n-1}

1) a_n = 50000(1.05)^{n-1}

2) In order to find salary in 5 years we need to plug n=5, we get

a_5 = 50000(1.05)^{5-1}= 50000(1.05)^4

= 50000(1.21550625)

<h3>=$60775.3125.</h3>

3) In order to find the total salary in 10 years we need to apply sum of 10 terms formula of a geometric sequence.

S_n = \frac{a(1-r^n}{1-r}

Plugging n=10, a = 50000 and r= 1.05.

S_10 = \frac{50000(1-(1.05)^{10}}{1-1.05}

S_10 = \frac{50000(0.050)^{10}}{0.05}

= 628894.62678.

<h3>Therefore , you will have earned $ 628894.62678 in total salary by the end of your 10th year.</h3>



7 0
3 years ago
M+7.9=39 1/2 I need help with this
Rasek [7]

Answer:

M would equal 31.6

Hope this helps!

Brainliest??

6 0
3 years ago
Fill in the missing value in each equation:<br>a)0.25+_____=0<br>b)-5×_____=-5<br>c)_____×-6=0
Mashutka [201]

Answer:

a) -0.25

b) 1

c)0

Step-by-step explanation:

a) 0.25 + (-0.25)=0

b) -5*1=-5

c) 0*(-6)=0

8 0
2 years ago
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