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Normal Random Variable

Quiz by jaime boy alegre

Grade 11-12
Statistics and Probability
Philippines Curriculum: SHS Core Subjects (MELC)

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15 questions
Show answers
  • Q1
    1. The total area under the normal curve is______?
    2
    4
    1
    3
    30s
  • Q2
    2. It is a random variable where the data can take infinitely many values.
    none of these
    continuous random variable
    both discrete and continuous random variable
    discrete random
    30s
  • Q3
    3. Let X = 8 be a Normal random variable with parameters , mean = 1 and SD =3. Convert it to Z-score.
    1.325
    5.322
    0
    2.333
    60s
  • Q4
    4. What proportion of cases in a normally distributed population will have z-scores greater than 1.0 or less than -1.0?
    0.50
    0.32
    0.10
    0.68
    120s
  • Q5
    5. In normal distribution, define the relationship of the mean, median and the mode.
    mean<median<mode
    mean=median=mode
    mean>median>mode
    no relation found
    30s
  • Q6
    6. Find the corresponding area between z=0 and z =0.96
    0.3317
    0.3316
    0.3314
    0.3315
    45s
  • Q7
    7. Find the area of z = 1.74
    0.4391
    0.4491
    0.4591
    0.4291
    45s
  • Q8
    8.Find the area of z = 2.18
    0.4754
    0.5054
    0.4954
    0.4854
    45s
  • Q9
    9. Find the area of z = 2.69?
    0.4684
    0.4984
    0.4974
    0.4964
    45s
  • Q10
    10. Find the area of z = 3.00
    0.4787
    0.4687
    0.4987
    0.4897
    45s
  • Q11
    11. Compute the Z scores of the X =50, SD = 5 , mean = 40
    4
    2
    8
    6
    120s
  • Q12
    12. Compute the Z scores of the X =40, SD = 8 , mean = 52
    2.5
    -2.5
    1.5
    -1.5
    120s
  • Q13
    13. Compute the Z scores of the X =36, SD = 6 , mean = 28
    -4/3
    3/4
    4/3
    -3/4
    120s
  • Q14
    14. Compute the Z scores of the X =74, SD = 10 , mean = 60
    1.4
    4.1
    -4.1
    -1.4
    120s
  • Q15
    15. Compute the Z scores of the X =82, SD = 15 , mean = 75
    7/15
    -15/7
    -7/15
    15/7
    120s

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