展开全部

题目列表

题目内容
The range of the first set is 10, if each of the number in the first set is doubled and then added by 3, what is the range of the new set?
40 < r < s < t < 60
r, s and t are even integers. What is the range of all the possible values of r+s+t?
x and y are both integers If 4 ≤ x < 7 < y ≤ 12, then what`s the range of $$(x-y)^{2}$$?
S={1, 2, 3, 4, 5}
T={6, 7, 8, 9, 10}
What is the number of different values that can be obtained by adding a member of set S to a member of set T?
A set contains all the integers from 53 to 63

Quantity A

The range when each number in the set is added by 5

Quantity B

The range when each number in the set is increased by 1.5%


25 integers are from 1 to 10, inclusive. The average of the 25 integers is 9. The sum of the remaining 24 integers except for the smallest value is 217. What is the range of the 25 integers?
In a class, the age of female students is from f to 44, and the age of male students is from 23 to m. Which of the following expression could be the range of all the students' age?
Indicate all such expressions.
What is the range of $$0.5^{-2}$$, $$0.5^{-1}$$,$$ 0.5^{0}$$, $$0.5^{1}$$, $$0.5^{2}$$?
Give your answer as a decimal.

Quantity A

The range of the 11 numbers

Quantity B

40



The range of the data set shown above is 37, now 11 and 43 are added into the data set.

Quantity A

The range of the entire set when 11 and 43 are added

Quantity B

37


There is a number list with a mean of 20, and standard deviation of 0.

Quantity A

The range of the number list

Quantity B

0


There were 5 different new houses for sale in a certain town last month. This month the prices of 3 of these houses decreased by $45,000 each, while the prices of the other 2 houses remained the same.

Quantity A

The standard deviation of the original 5 prices

Quantity B

The standard deviation of the resulting 5 prices after the 3 prices decreased


Five points lie on line y=5x+30. If the standard deviation of all the x-coordinates of the five points is 4.6, then what is the standard deviation of all the y-coordinates of the five points?

Quantity A

The standard deviation of numbers 12, 13, 16, 19, 20

Quantity B

The standard deviation of numbers 12, 15, 16, 17, 20


Set A={500, 600, 700, 900, 1200}
Set B={500, 600, 800, 900, 1200}
Quantity A: The standard deviation of numbers in Set A
Quantity B: The standard deviation of numbers in Set B
A normal distribution of variable X has a mean of 56 and a standard deviation of 4.

Quantity A

The percentage of variable X ranging from 60 to 62

Quantity B

The percentage of variable X ranging from 62 to 64


There are 45 students in a class. 23 students take math course, and 28 students take science course, while 7 students take neither of them. How many students take both math and science courses?
On a boat of 2,500 passengers, 1,250 of them have been to Paris, while 900 of them have been to London. If 30% of all passengers have been to both cities, then how many passengers haven`t been to either of the two cities?
In a company, 54.6% of employees regard salary as the most important incentive, 47% of employees regard promotion as the most important incentive, while 30% of employees regard both incentives as important. What percentage of employees regard neither incentive as important?
____%
In a survey of preference of pets, 40% of respondents prefer dogs, and 30% of respondents prefer cats. If 40% of respondents prefer neither dog nor cat, what percent of respondents prefer both dog and cat?

共收录:

25000 +道题目

202本备考书籍

最新提问