noribdoglover8442 noribdoglover8442
  • 14-04-2022
  • Mathematics
contestada

Scores on an English test are normally distributed with a mean of 68.7 and a standard deviation of 6.2. Find the score which seperates the bottom 64% from the top 36%.

Respuesta :

jsimpson11000 jsimpson11000
  • 18-04-2022

Answer:

70.93

Step-by-step explanation:

Z-score for  100-36 = 64 percentile = +.36   of a S.D. above the mean

.36 * 6.2  + 68.7 = 70.93

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