3 years ago

Toss a coin 5 times. what is the probability of getting exactly 2 tails

1 answer:

5 0

The total number of outcomes is (1/2)^5 dice each of the 5 coin tosses is an independent event. From the 5 possible tails, exactly 2 tails need to be selected. So the favored outcome is 5C2 = (5*4)/(1*2)= 10. The probability is 10/32 = 5/16.

You might be interested in

A number and +7 is less than or equal to nine

pychu [463]

7 is less than nine

8 0

3 years ago

The cities of fayetteville, raleigh and durham form a triangle. they are building a new

Sati [7]

Answer:

it should be built at the centre

6 0

3 years ago

I can Multiply a 11x6 matric by a 6x7 matrix. The resulting matrix will be ??? Can somebody help me

Bumek [7]

Answer:

The resulting matrix will be 11 * 7

Step-by-step explanation:

Given

Matrices 11 * 6 multiplied by 6 * 7

Required

The dimension of the resulting matrix

When a matrix a * b is multiplies by a matrix b * c, the resulting matrix will be: a * c

In this case:

$a * b = > 11 * 6$

$b * c => 6 * 7$

So, the resulting matrix will be:

$a * c => 11 * 7$

3 0

3 years ago

8x^3-6x^2+13x-4<br> Please simplify this expression and tell me how u simplified it.

jeka94

This expression is already simplified.

5 0

3 years ago

What does one third equal

monitta

Divide $\frac{1}{3}$ . 1÷3=0.33333333333333 $\frac{1}{3}$ equals 0.333333333333333

5 0

3 years ago