subject
Mathematics, 29.10.2020 06:50 alexanderickh1

A set of exam marks has mean 70, median 65, inter-quartile range 25 and standard deviation 15 marks. It is decided to subtract 10 from all the marks. For the new set of marks,
i) what is the new mean?
ii) what is the new median?
I
iii) what is the new inter-quartile range?
iv) what is the new standard deviation?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)
Answers: 2
question
Mathematics, 21.06.2019 15:50
Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares
Answers: 1
question
Mathematics, 21.06.2019 16:00
Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.
Answers: 2
question
Mathematics, 21.06.2019 21:30
Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle
Answers: 1
You know the right answer?
A set of exam marks has mean 70, median 65, inter-quartile range 25 and standard deviation 15 marks...
Questions
question
Mathematics, 27.03.2021 01:30
question
Mathematics, 27.03.2021 01:30
question
Mathematics, 27.03.2021 01:30
question
Mathematics, 27.03.2021 01:30
Questions on the website: 13722360