Mathematics, 02.03.2022 20:20 dondre54

In 2005, 1,475,623 students heading to college took the SAT. The distribution of scores in the math section of the SAT follows a normal distribution with mean = 520 and standard deviation = 115. Part (a)
Calculate the z-score for an SAT score of 710. Interpret it using a complete sentence. (Round your answer to two decimal places.)
The z-score is _. The exam score of 710 is _ standard deviations (above/below) the mean of 520.
Part (b)
What math SAT score is 1.4 standard deviations above the mean? What can you say about this SAT score? (Enter your answer to one decimal place.)
The score SAT score is . This score is 1.4 standard deviations (above/below) the mean.
Part (c)
For 2012, the SAT math test had a mean of 514 and standard deviation 117. The ACT math test is an alternate to the SAT and is approximately normally distributed with mean 21 and standard deviation 5.3. If one person took the SAT math test and scored 700 and a second person took the ACT math test and scored 33, who did better with respect to the test they took? (Round your answers to two decimal places.)
The z-score for an SAT score of 700 is . The z-score for an ACT score of 33 is . Therefore, the student who took the (SAT/ACT) did better, because that person has a (higher/lower) z-score.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 14:40

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Answers: 1

Answer

Mathematics, 21.06.2019 23:30

Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality

Answers: 1

Answer

Mathematics, 22.06.2019 03:10

Which of the following statements are true? (select all that apply.) a quasi-static process is one in which the system is never far from being in equilibrium. when a system can go from state 1 to state 2 by several different processes, the amount of heat absorbed by the system will be the same for all processes. the internal energy of a given amount of an ideal gas depends only on its absolute temperature. when a system can go from state 1 to state 2 by several different processes, the work done on the system will be the same for all processes. when a system can go from state 1 to state 2 by several different processes, the change in the internal energy of the system will be the same for all processes. for any substance that expands when heated, its cp is greater than its cv.

Answers: 2

Answer

You know the right answer?

In 2005, 1,475,623 students heading to college took the SAT. The distribution of scores in the math...

Questions