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3 years ago

Chandra bowled five games. Her scores were 89, 97, 112, 104, and 113. What is her mean score for the five games?

Mathematics

1 answer:

horrorfan [7]3 years ago

3 0

103 because you have to add all the numbers up then divide that number by however many numbers there are to get mean.

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Mark raises guppies in an aquarium. He finds out that guppies reproduce very rapidly, and the number quadruples every month. He

Andrews [41]

For this case what we should know is that the function that best adapts to this problem is given by:
y = 2 * (4) ^ x
The graph of the function is shown for two different intervals:
A small interval of -1.5 to 0.5
A larger interval of -6.5 to 6.5.
In both intervals the exponential growth of the function is demonstrated.
Answer:
See attached image.

7 0

3 years ago

Help I’m stuck!!!!!!!!!

Delvig [45]

0.45 i think just into fractions

4 0

2 years ago

Read 2 more answers

A marketing firm is considering making up to three new hires. Given its specific needs, the management feels that there is a 50%

IRISSAK [1]

Answer:

a) 0.9

b) Mean = 1.58

Standard Deviation = 0.89

Step-by-step explanation:

We are given the following in the question:

A marketing firm is considering making up to three new hires.

Let X be the variable describing the number of hiring in the company.

Thus, x can take values 0,1 ,2 and 3.

$P(x\geq 2) = 50\%= 0.5\\P(x = 0) = 10\% = 0.1\\P(x = 3) = 18\% = 0.18$

a) P(firm will make at least one hire)

$P(x\geq 2) = P(x=2) + P(x=3)\\0.5 = P(x=2) + 0.18\\ P(x=2) = 0.32$

Also,

$P(x= 0) +P(x= 1) + P(x= 2) + P(x= 3) = 1\\ 0.1 + P(x= 1) + 0.32 + 0.18 = 1\\ P(x= 1) = 1- (0.1+0.32+0.18) = 0.4$

$\text{P(firm will make at least one hire)}\\= P(x\geq 1)\\=P(x=1) + P(x=2) + P(x=3)\\ = 0.4 + 0.32 + 0.18 = 0.9$

b) expected value and the standard deviation of the number of hires.

$E(X) = \displaystyle\sum x_iP(x_i)\\=0(0.1) + 1(0.4) + 2(0.32)+3(0.18) = 1.58$

$E(x^2) = \displaystyle\sum x_i^2P(x_i)\\=0(0.1) + 1(0.4) + 4(0.32) +9(0.18) = 3.3\\V(x) = E(x^2)-[E(x)]^2 = 3.3-(1.58)^2 = 0.80\\\text{Standard Deviation} = \sqrt{V(x)} = \sqrt{0.8036} = 0.89$

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3 years ago

I don’t know how to do these I need help

Citrus2011 [14]

k = 15 is the answer!!!!!!

7 0

3 years ago

20 POINTS ANSWER ASAP SHOW ALL WORK

nadezda [96]

Answer: 12,8 approximately 13 cones

Step-by-step explanation:

1] volume of a cone

V=1/3πr^2h

V=1/3π(3)^2(5)

V=47,12 cubic inches

2] volume of a cylinder

V=πr^2h

V=π(8)^2(3)

V=603.19

Now devide the volume of a cylinder by the volume of a cone

603,19÷47,12=12,8 cones

3 0

3 years ago