whitelybrittany whitelybrittany

08-10-2022
Mathematics

Answered

Keiko took both the SAT and the ACT college entrance exams. Her scores on both exams are shown in the table, as well as the national mean scores and standard deviations.

Exam Keiko's
Exam Score National Mean
Exam Score National Standard
Deviation
SAT 1650 1500 300
ACT 23 20.8 4.4

She wants to know on which test she performed better. Find the z-scores for her result on each exam. Round to one decimal place if necessary.

Answer :

Other Questions

a final exam in math 160 has a mean of 73 with standard deviation 7.2. if 22 students are randomly selected, find the probability that the sample mean of their

Solve each of the following equations using the Extended Square Root Property. 1. 8√x+7=16 x= _____________ 2. √7x+4−3=0 x= _____________ 3. 8√5x−7=16 x= ______

Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(aza)0.4314, find a. Round to two decimal places.

The table shows the worldwide box office (in billions of dollars) for the movie industry during the years shown. Year 2001 2003 2005 2007 2009 Box office (in bi

Point A is 3 units to the right of, and 20 units lower than, point B. Find the slope of the line connecting points A and B. O 20 3 O 20 3 O -17 3 20

After mutation by PX-41, minions exhibit several new traits, such as purple skin instead of yellow, and being indestructible (as opposed to not indestructible).

(a) Base 12 cm (b) (c) 7.8 mm Height 7 cm 6 m Area 42 m² 642.9 mm²

Maximize: z= 6x +12y subject to: 4x + 5y ≤20 8x + y ≤ 20 x≥0, y 20

# 13 i MODELING REAL LIFE The post office and the grocery store are both on the same straight road between the school and your house. The distance from the scho

3) Recall problem 48 from your notes: Half an hour after leaving her house, Leah was 25 miles from home. Leah then merged onto the freeway, and was able to trav