All categories

3 years ago

If you flip a coin 10 times, what is the best prediction possible for the number of times it will land on tails?

Mathematics

2 answers:

Serjik [45]3 years ago

8 0

Answer:

Step-by-step explanation:

The probability of tails is 1/2, so the expected value is (1/2) (10) = 5.

ludmilkaskok [199]3 years ago

4 0

Answer:

Step-by-step explanation:

Probability of land a tail when the coin is tossed once is 1/2 because a coin has two sides and contains one head

Then when it is tossed 10 times, the no of time a tail appears is. 1/2 * 10 =5

You might be interested in

Help subtract (xsquared +43x10)-(10xsquared-5x+10 express the answer in standard form

ad-work [718]

Answer:

$\large\boxed{(x^2+43x+10)-(10x^2-5x+10)=-9x^2+48x}$

Step-by-step explanation:

$(x^2+43x+10)-(10x^2-5x+10)\\\\=x^2+43x+10-10x^2-(-5x)-10\\\\=x^2+43x+10-10x^2+5x-10\qquad\text{combine like terms}\\\\=(x^2-10x^2)+(43x+5x)+(10-10)\\\\=-9x^2+48x$

6 0

3 years ago

Your supposed to put the 4 answers in the correct spots. Please help!

andrew-mc [135]

Answer:

I can't see the question

Step-by-step explanation:

sorry

maybe try asking the same question again

3 0

3 years ago

Solve ninety two hundredths plus four and six tenths plus eight

stiks02 [169]

13.52 should be the correct answer

8 0

3 years ago

X and y are both bigger than 30. x and y have HCF 21 and LCM 1617. Find x and y.

Sunny_sXe [5.5K]

The values of x and y are 99 and 343

The HCF of numbers is the highest common factors of the numbers

The LCM of numbers is the lowest common multiple of the numbers

The HCF and the LCM are given as:

$HCF = 21$

$LCM = 1617$

Multiply the HCF and the LCM

$HCF \times LCM = 21 \times 1617$

$HCF \times LCM = 33957$

The product of the numbers x and y equals the product of the HCF and the LCM.

So, we have:

$x \times y = 33957$

<h3>Prime Factors</h3>

Express 33957 as a prime factor

$x \times y = 3^2 \times 7^3 \times 11$

Rewrite the equation as

$x \times y = 99 \times 7^3$

$x \times y = 99 \times 343$

By comparison:

$x = 99$

$y= 343$

Hence, the values of x and y are 99 and 343