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
vredina [299]
3 years ago
15

Isabel is organizing teams for a scavenger hunt. She wants to divide the boys and girls so that each group has the same number o

f both boys and girls. There are 45 boys and 30 girls that want to participate. What is the greatest number of teams Isabel can make? How many boys and how many girls will be on each team?

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0

Answer:

15 teams

4 people(2 girls and 2 boys)

Step-by-step explanation:

Please refer to the attached image for explanations

You might be interested in
Day care centers expose children to a wider variety of germs than the children would be exposed to if they stayed at home more o
Ostrovityanka [42]

Answer:

a) The study is an observational study

b) The proportion of children with significant social activity in children with acute lymphoblastic leukemia is approximately 0.802

The proportion of children with significant social activity in children without acute lymphoblastic leukemia is approximately 0.8565

c) The odds ratio is approximately 0.6780

d) The 95% CI is approximately 0.523 < OR < 0.833

e) i) Yes

ii) Children with more social activity have a higher occurrence of acute lymphoblastic leukemia

Step-by-step explanation:

a) An experimental study is a study in which the researcher adds inputs to the study and then monitors the outcomes

An observational study is one in which the researcher observes risk factors and does not intervene in the process

Therefore, the study is an observational study

b) The proportion of children with significant social activity in children with acute lymphoblastic leukemia is \hat p_1 = 1020/1272 = 85/106 = 0.8\overline {0188679245283} ≈ 0.802

The proportion of children with significant social activity in children without acute lymphoblastic leukemia is \hat p_2 = 5343/6238 ≈ 0.8565

c) We have the following two way table;

\begin{array}{ccc}Lymphoblastic \ Leukemia &With \ Social \ Activity & Without \ Social \ Activity\\With&1020 \ (a)&252 \ (b)\\Without&5343 \ (c)&895 \ (d) \end{array}

The \ odds \ ratio = \dfrac{1,020 \times 895}{5,343 \times 252} \approx 0.6780

The odds ratio ≈ 0.6780

d) The 95% confidence interval for the odds ratio is given as follows;

95 \% \ CI = OR \ \pm \ 1.96 \times \sqrt{\dfrac{1}{a} +\dfrac{1}{b}+\dfrac{1}{c}+\dfrac{1}{d}}

Where;

a = 1020, b = 252, c = 5343, d = 895

Therefore;

95 \% \ CI \approx  0.6780 \ \pm \ 1.96 \times \sqrt{\dfrac{1}{1,020} +\dfrac{1}{252}+\dfrac{1}{5,343}+\dfrac{1}{895}} \approx 0.678 \pm0.155

The 95% CI ≈ 0.523 < OR < 0.833

e) i) Given that the observed Odds Ratio is within the Confidence Interval, therefore, there is an indication that the amount of social activity is associated with acute lymphoblastic leukemia

ii) Based on the proportion of the study findings, children with more social activity have a higher occurrence of acute lymphoblastic leukemia

6 0
2 years ago
What is 9+10 in mathematics
MrRa [10]

Answer: 21

Step-by-step explanation:

6 0
3 years ago
. On Tuesday, Bellagio's Pizza sold 60 plain pizzas at $5 each; 20 meatball pizzas at $8 each; 25 Sicilian pizzas at $9 each; an
Alexeev081 [22]
The answer is D because 

60 times 5=300

20 times 8=160

25 times 9=225

33 times 10=330

Then add all of them and it gives you $1,015
4 0
3 years ago
I’m having trouble with this
Alchen [17]

Answer:


Step-by-step explanation:

EVEN THOUGH IT SHOWS A 1 DEGREE TEMPERATURE RISE AT 4PM TO 66

THAT SHOULD NOT MATTER IT FELL A TOTAL OF 5 DEGREES FROM 3 TO 6PM  

4 0
3 years ago
A giraffe can run about 14 meters per second. Find it's speed in miles per hour
Inga [223]
(14 meter/sec) x (1 mile/1609.344 meter) x (3,600 sec/hour) =

                         (14 x 3600) / (1609.344) = <em>31.32 mile/hour  </em>(rounded)
4 0
3 years ago
Other questions:
  • Write a comparison sentence that represents this equation. 5x9=45
    7·1 answer
  • Solve log_8 12 = x – 2 . Round your answer to four decimal places.
    15·2 answers
  • A couple would like to have two children, what the probability that they will not be the same sex
    14·2 answers
  • Name the segment that is parallel to the given segment
    13·1 answer
  • JK⎯⎯⎯⎯⎯ is dilated by a scale factor of n with the origin as the center of dilation, resulting in the image J′K′⎯⎯⎯⎯⎯⎯⎯. The slo
    9·2 answers
  • Suppose the true proportion of students at a college who study abroad is 0.25. I select a random sample of 40 students from the
    14·1 answer
  • I need help please and thank you<br> no links
    13·1 answer
  • Manny and John buy a pizza from Pizza Palace for $18. They decided to split
    14·2 answers
  • EMERGENCYYY!
    9·2 answers
  • Please help I'll give brainliest if answer is right ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!