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katovenus [111]
2 years ago
14

5. The heights of 500 female students are measured, half of whom are college students and half of whom are second-grade students

. How many modes would you expect for this distribution? Why? Would this distribution be symmetric, left-skewed, right-skewed or none of these? Why?
Mathematics
1 answer:
AysviL [449]2 years ago
4 0

Using statistical concepts, it is found that:

  • 2 modes would be expected for the distribution.
  • The distribution would be symmetric.

-------------------------------

  • Heights are traditionally normally distributed, which is a symmetric distribution.
  • Second-grade students are considerably shorter than college students, so there would be two modes.
  • Both distributions, for the height of second grade and of college students, are normal, which is symmetric, thus the combined distribution will also be symmetric.

A similar problem is given at brainly.com/question/13460485

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Help please!!! Thank you
Anna11 [10]

Answer: ∠ABE=20°

Step-by-step explanation:

∵ AB=BC

∴ ΔABC is a isosceles triangle

∵ ∠A=30

∴ ∠C=30

∵ The interior angle sum of triangle is 180°

∵ ∠A+∠B+∠C=180

    30+∠B+30=180

           ∠B+60=180

                  ∠B=120 (∠ABC)

∵ ∠EBD+∠ABE+∠ABC=linear pair

∴∠EBD+∠ABE+∠ABC=180°

                  4x+2x+120=180

                        6x+120=180

                                6x=60

                                  x=10

∠ABE=2x=2(10)=20°

Hope this helps!! :)

Please let me know if you have any question

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ElenaW [278]
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