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October 25, 2014

October 25, 2014

Posted by **Elise** on Friday, February 17, 2012 at 6:43pm.

a) what percentage of these students have scores in the range 400 to 700?

b) There were about 1000 students with scores in the range 450-650 on the Verbal SAT. About _______ of them had scores in teh range 500 to 600. Fill in blanks. Explain briefly

- Statistics -
**Nancy Jackson Miller**, Saturday, February 18, 2012 at 12:51ama) Need to find P(400 < x < 700)= ?

z = (400 - 550)/100 = -1.5

z =(700 - 550)/100 = 1.5

P(400 < x < 700)= P(-1.5 < z < 1.5)

= 0.8663=86.36%(Ans.)

- Statistics -
**Nancy Jackson Miller**, Saturday, February 18, 2012 at 12:53ama) Need to find P(400 < x < 700)= ?

z = (400 - 550)/100 = -1.5

z =(700 - 550)/100 = 1.5

P(400 < x < 700)= P(-1.5 < z < 1.5)

= 0.8663=86.36%(Ans.)

From: Tutor_Teddy

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