1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yaroslaw [1]
3 years ago
6

A high school track team has a grade point average of 3.36, with a standard deviation of 1.2. Their coach wants to identify the

team members in the bottom 33% for extra tutoring help. What is the grade point average that will mean that a track team athlete will be recommended for extra tutoring help if the coach examines just 32 of her athletes
Mathematics
1 answer:
natima [27]3 years ago
6 0

Answer:

GPAs os 2.832 and lower will mean that a track team athlete will be recommended for extra tutoring help

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value 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. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

\mu = 3.36, \sigma = 1.2

Bottom 33%:

The 33rd percentile(X when Z has a pvalue of 0.33) and below.

So we have to find X when Z = -0.44.

Z = \frac{X - \mu}{\sigma}

-0.44 = \frac{X - 3.36}{1.2}

X - 3.36 = -0.44*1.2

X = 2.832

GPAs os 2.832 and lower will mean that a track team athlete will be recommended for extra tutoring help

You might be interested in
4. Solve the simultaneous equations<br> x+2y=3<br> 2x+3y = 5
gavmur [86]

Step-by-step explanation:

eyebjjzsjkzjjuvcycuvvucucuvucc

3 0
3 years ago
Read 2 more answers
Please help me with the correct answer
Shkiper50 [21]

Answer:

10

Step-by-step explanation:

c² = a² + b²

= 8² + 6²

= 64 + 36

= 100

c² = 100

c = 10

8 0
2 years ago
I need help with this plz
Ksju [112]

Answer:

The correct answer is D. 10.

Step-by-step explanation:

If Brandy earns 2 stars for every goal, and she scored 8 goals, then we need to multiply 8 by 2.

8 x 2 = 16

She looses 1/2 a star for every miss, and she missed the goal 12 times. Therefore, we need to multiply 1/2 by 12.

12 x 1/2 = 6

Therefore, Brandy lost 6 stars.

Now, we need to subtract the amount of stars Brandy earned by the amount that she lost.

16 - 6 = 10

Therefore, the correct answer is D. 10.

Hope this helps! :D

5 0
3 years ago
Comeplete the following :<br> Rx0 Do2 : (2,4) -&gt; (-4, 8) (4, -8) (-4, -8)
Aneli [31]

Point (2, 4) was reflected over the x axis to give (2, -4). It was then dilated by a scale factor of 2 to get (4, -8). Hence (2, 4) ⇒ (4, -8)

<h3>What is a transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>reflection, translation, rotation and dilation.</em>

Translation is the movement of a point either<em> up, down, left or right</em> on the coordinate plane.

Point (2, 4) was reflected over the x axis to give (2, -4). It was then dilated by a scale factor of 2 to get (4, -8). Hence (2, 4) ⇒ (4, -8)

Find out more on transformation at: brainly.com/question/4289712

#SPJ1

6 0
2 years ago
What is 6^7 in expanded form?​
Wewaii [24]

Answer:

6x6x6x6x6x6x6

Step-by-step explanation:

6^2 is 6x6

6^3 is 6x6x6

etc...

6^7 is 6x6x6x6x6x6x6

8 0
3 years ago
Read 2 more answers
Other questions:
  • Identify patterns 1 ,1 ,1, 2, 1 ,4, 1
    14·2 answers
  • A missile is fired at an angle of 75 from the horizontal. At one point, its speed was 900 mph. Find its horizontal velocity in m
    5·1 answer
  • A polygon has an area of 225 square meters. If the area is tripled, how does each side length change?
    15·1 answer
  • What must be true about two integers thst combine to equal zero?
    7·1 answer
  • Why is the opposite of a number also called the additive inverse
    8·1 answer
  • What is the third power of 3
    9·2 answers
  • Which expression is equivalent to<br> min<br> pg?<br> mºn<br> po<br> m2
    14·1 answer
  • Help me please i really need this done I'm giving up all my points for this
    12·1 answer
  • to stay healthy we should drink 6 1/2 glasses of water a day. if we follow guidelines how much water would we drink in a full we
    11·1 answer
  • How to find the area using the net of a pyramid
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!