Mathematics, 19.01.2021 19:20 sandrahg3
A fourth grade teacher gives homework every night in both mathematics and language arts. The time to complete the mathematics homework has a mean of 10 minutes and a standard deviation of 3 minutes. The time to complete the language arts assignment has a mean of 12 minutes and a standard deviation of 4 minutes. The time to complete the mathematics and the time to complete the language arts homework has a correlation p = -0.75. The standard deviation of the time to complete the entire homework assignment is:.
a. 25 minutes.
b. 5 minutes.
c. 3 minutes.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 16:00
What were mkh company's cash flows from (for) operating activities in 20x1? $(180,300) $233,100 $268,200 $279,400?
Answers: 2
Mathematics, 21.06.2019 22:20
Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?
Answers: 2
Mathematics, 21.06.2019 22:30
Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.
Answers: 2
Mathematics, 21.06.2019 22:30
What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)
Answers: 2
You know the right answer?
A fourth grade teacher gives homework every night in both mathematics and language arts. The time to...
Questions
History, 26.10.2019 02:43
Mathematics, 26.10.2019 02:43
History, 26.10.2019 02:43
Mathematics, 26.10.2019 02:43
Mathematics, 26.10.2019 02:43
Mathematics, 26.10.2019 02:43
Mathematics, 26.10.2019 02:43
History, 26.10.2019 02:43
History, 26.10.2019 02:43
