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juin [17]
2 years ago
14

4. Choose the best answer.

Mathematics
1 answer:
Svet_ta [14]2 years ago
4 0
the answer isexistence
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Last season, a baseball player scored 14 runs in 18 games. this season, the baseball player scored 12 runs in 15 games. Find the
gregori [183]
The number of runs score per game in the last season is 14/18=0.78, in this season is 12/15=0.8
0.78<0.8, so this season the player scored more runs per game

8 0
2 years ago
Find the missing right triangle side lengths in the models of the Pythagorean thereon below
NISA [10]

Answer:

do not know

Step-by-step explanation:

8 0
2 years ago
A normally distributed set of numbers has a mean of 75 and a standard deviation of 7.97. What percentage of values lies between
lana [24]

Answer:

63% of the values lies between 70 and 85.

Step-by-step explanation:

We are given that a normally distributed set of numbers has a mean of 75 and a standard deviation of 7.97.

<em>Let X = Set of numbers</em>

The z-score probability distribution for is given by;

                Z = \frac{  X -\mu}{\sigma}  ~ N(0,1)

where, \mu = mean value = 75

            \sigma = standard deviation = 7.97

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, percentage of values that lies between 70 and 85 is given by = P(70 < X < 85) = P(X < 85) - P(X \leq 70)

   P(X < 85) = P( \frac{  X -\mu}{\sigma} < \frac{  85-75}{7.97} ) = P(Z < 1.25) = 0.89435  {using z table}

   P(X \leq 70) = P( \frac{  X -\mu}{\sigma} \leq \frac{  70-75}{7.97} ) = P(Z \leq -0.63) = 1 - P(Z < 0.63)

                                                 = 1 - 0.73565 = 0.26435

<em>Now, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 1.25 and x = 0.63 in the z table which has an area of 0.89435 and 0.73565 respectively.</em>

Therefore, P(70 < X < 85) = 0.89435 - 0.26435 = 0.63 or 63%

<em>Hence, 63% of the values lies between 70 and 85.</em>

6 0
3 years ago
Find the greatest common factor of x²y and xy²​
balandron [24]

Answer:

xy

Step-by-step explanation:

Let's take a look at what factors x^2y and xy^2 have in common.

x^2y is composed of x^2 and y, and xy^2 is composed of x and y^2. Notice that both x and y are factors of them, so the gcf is xy.

8 0
3 years ago
What is the square root of 7686.3652736?
Elena-2011 [213]

Answer: 87.6719183867

Step-by-step explanation:

7 0
3 years ago
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