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
den301095 [7]
3 years ago
5

Researchers studied a random sample of high school students who participated in interscholastic athletics to learn about the ris

k of lower-extremity injuries (anywhere between hip and toe) for interscholastic athletes. Of 1002 participants in girls' soccer, 75 experienced lower-extremity injuries. Of 1670 participants in boys' soccer, 151experienced lower-extremity injuries.(a) Write a two-way table of observed counts for gender and whether a participant had a lower-extremity injury or not.
Gender Had Injury No Injury Total
Girls
Boys
Total

(b) Determine a two-way table of expected counts for these data. (Round the answers to one decimal place where it is needed.)

Gender Had Injury No Injury Total
Girls
Boys
Total


(c) Show calculations verifying that the value of the chi-square statistic is 1.96.

Chi-square = (75-84.8)2/ + (927- )2/917.3 + ( -141.3)2/141.3 + (1519- )2/ = 1.13 + 0.10 + + 0.06 = 1.96
Mathematics
1 answer:
gregori [183]3 years ago
6 0

Answer:

What role does blood play before cellular respiration can occur?

Blood releases energy from very small molecules.

Blood carries energy from cytoplasm to a mitochondrion.

Blood delivers oxygen and glucose to cells.

Blood delivers carbon dioxide and water to cells.

Step-by-step explanation:

You might be interested in
Find the greatest number you can add to 4315 without having to regroup
harkovskaia [24]
  4315
<u>+5684
</u>  9999    So 5684 is the greatest number you can write.<u>
</u>
7 0
4 years ago
Ignacio shares 2.1 liters of water equally into 7 containers. How many milliliters are in each container?
Anna11 [10]

300 milliliters in each container because 2.1 liters is 2100 milliliters and 2100/7 is 300

6 0
3 years ago
Please answer immediately. first one to answer correctly wins brainliest!​
Elis [28]
Answer what?there’s nothing to answer
5 0
3 years ago
1. y = 3(x - 4)2 - 2
oksano4ka [1.4K]

Answer:

y = 3x - 12

Step-by-step explanation:

8 0
3 years ago
Bradley is returning home from a place that is 2 kilometers away the function y=2,000-90x represents Bradley’s distance from hom
Aloiza [94]
These are the statements that accompany this question:

A.The function is a linear function.

B.The function is a nonlinear function.

C.The function does not change at a constant rate.

D.The function is an increasing function.

E.The function changes at a constant rate.

An this is the assesment of each of statement:


A.The function is a linear function.

TRUE: a linear function can take the forms  Ax + By - C = 0, or y = mb + b

You can verify that y = 2000 - 90 x is of this type.

B.The function is a nonlinear function.

FALSE: we showed the opposite in A)

C.The function does not change at a constant rate.

FALSE: the rate of change of a linear function is constant and it is known as the slope.

D.The function is an increasing function.

FALSE: the value of y decreases as x increases, given that the slope is negative ( -90).

E.The function changes at a constant rate.

TRUE: the constant rate is the slope, i.e. - 90.


7 0
3 years ago
Other questions:
  • What is the ratio for 8 and 12
    12·1 answer
  • Which of the following numbers can be expressed as a decimal that<br> terminates 9/7 5/3 3/2 6/4
    10·1 answer
  • Proportional graphs can be straight or curved. .<br> O True<br> O False
    6·1 answer
  • What type of table has the largest area
    13·1 answer
  • Help me out please?? Tysvm!
    6·1 answer
  • What is the volume of the right rectangular prism?
    7·2 answers
  • Diego was asked to plot these points: (-50, 0), (150, 100), (200, -100), (350, 50), (-250, 0). What interval could he use for ea
    7·1 answer
  • 262000000 scientific notation
    15·1 answer
  • 6. Solve for x. (round to the nearest whole number)
    6·1 answer
  • How many unit cubes need to be added to the figure so that it will have a total
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!