All categories

3 years ago

What is the mean IQ for this sample? 102 O 104 O 105 O 110

Mathematics

2 answers:

KiRa [710]3 years ago

8 0

Answer:

106.3

Step-by-step explanation:

Mean: Sum Of The Numbers

Number Of Terms

Add up all the numbers. Take the sum of that (the answer) and divide it by how ever many numbers there are.

I hope this helped!

cestrela7 [59]3 years ago

4 0

Answer:

105.25

Step-by-step explanation:

You might be interested in

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the pl

BaLLatris [955]

There is only two multiples of three on a six-sided die, the 3 side, and the 6 side.

3 x 20 = 60
6 x 20 = 120
120 + 60 = 180

$180.00 is your possible winnings total, but the question asks for your expected value on EACH roll, so you divide 180 by 6(sides on a die) to get your final answer

180/6 = 30

ANSWER: D. $30.00

5 0

2 years ago

Read 2 more answers

If f(x)=3^x + 10^x and g(x)=4^x-2,find(f-g)(x)

tresset_1 [31]

H gc d rxr V unimoi oubyctvuimubyv

8 0

3 years ago

Ralph sold brownies for $0.44 a piece in order to earn money to buy baseball cards. If the cards cost $0.60 per pack, and if

Dima020 [189]

He had to sell 16 brownies

3 0

3 years ago

9 millions equal how many tens?

sammy [17]

It equals 900,000 10's

8 0

3 years ago

Read 2 more answers

Which of the following is NOT a rational number?

makvit [3.9K]

Answer:

A rational number is a number that can be expressed as a fraction (the ratio of two integers).

Integer: A whole number that can be positive, negative, or zero.

To calculate if each radical can be expressed as a rational number, convert the decimals into rational numbers, then simplify:

$\sqrt{121}=\sqrt{11^2}=11=\dfrac{11}{1} \quad \leftarrow \textsf{rational}$

$\sqrt{12.1}=\sqrt{\dfrac{1210}{100}}=\dfrac{\sqrt{1210}}{\sqrt{100}}=\dfrac{\sqrt{121\cdot 10}}{10}=\dfrac{\sqrt{121}\sqrt{10}}{10}=\dfrac{11\sqrt{10}}{10} \leftarrow \textsf{not rational}$

$\sqrt{1.21}=\sqrt{\dfrac{121}{100}}=\dfrac{\sqrt{121}}{\sqrt{100}}=\dfrac{\sqrt{11^2}}{\sqrt{10^2}}=\dfrac{11}{10} \leftarrow \textsf{rational}$

$\sqrt{0.0121}=\sqrt{\dfrac{121}{10000}}=\dfrac{\sqrt{121}}{\sqrt{10000}}=\dfrac{\sqrt{11^2}}{\sqrt{100^2}}=\dfrac{11}{100} \leftarrow \textsf{rational}$

Therefore, $\sf \sqrt{12.1}$ is not a rational number.

5 0

2 years ago