What is the expected number of tails when a fair coin is tossed 100 times?

Mathematics

2 answers:

BigorU [14]3 years ago

6 0

The answer to your question is 50

Karo-lina-s [1.5K]3 years ago

3 0

Answer:

50 times

Step-by-step explanation:

Assuming a fair coin (probability of heads = 1/2), the expected number of heads (in the sense of mathematical expectations) is 100*1/2 = 50.

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Question 9 options:

vazorg [7]

Answer:

area = 14 square units
perimeter = 19.1 units

Step-by-step explanation:

The base of the triangle extends from x=2 to x=6, a distance of 4 units.

The height of the triangle is 9 - 2 = 7 units.

Then the area is ...

A = (1/2)(4 units)(7 units) = 14 units^2

The length of the hypotenuse is given by the Pythagorean theorem.

h^2 = 4^2 +7^2 = 16 +49 = 65

h = √65 ≈ 8.1

The perimeter is the sum of the side lengths:

P = 4 + 7 + 8.1 = 19.1 . . . units

3 0

2 years ago

Look for a pattern to find the value of ninput output-1 -10 81 172 263 n4 44

NISA [10]

Given:

The values of input and outputs are given

Output is increasing by 9 for the increase in x values.

$n=26+9$ $n=35$

5 0

1 year ago

Jonah drives from his car to and from work. The total length of the trip to and from work is 19.2 miles. In August, Jonah worked

natita [175]

ANSWER

The total length of the trip to and from work in August is

$403.2 \: miles$

EXPLANATION

The total length of the trip to and from work is

$19.2 \: miles$

If Jonah worked 21 days in August,

Then, the total length of the trip to and from work is
$= 21 \times 19.2 \: miles$

Change the decimal to fraction and multiply,

$= 21 \times \frac{192}{10} miles$

$= \frac{21 \times 192}{10}$

$= \frac{4032}{10} miles$

Convert back to decimal

$= 403.2 \: miles$