2 years ago

: A coin is thrown 30 times.

Mathematics

2 answers:

mel-nik [20]2 years ago

7 0

The relative frequency of it landing on tails is 20/30 or 2/3 or 0.667

zavuch27 [327]2 years ago

6 0

Answer:

let H represent the head's outcome

let T represents the outcome of tails.

if the coin is tossed 3times The total number outcomes are

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

You might be interested in

The following table shows the probability of rolling the numbers 1 through 7

Marysya12 [62]

Answer:

2.0

Step-by-step explanation:

Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die

The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)

The first moment (AKA the average is..)

$\frac{1+2+3+4+5+6+7}{7}=4$

The second moment is..

$\frac{1^2+2^2+3^2+4^2+5^2+6^2+7^2}{7}=20$

$\sqrt{20-4^2}=2$

4 0

2 years ago

A pen costs twice as much as a pencil. The total cost of 1 pen and 1 pencil is $2.10. If p represents the cost of 1 pencil, whic

oksano4ka [1.4K]

Answer:

A:2p+p=10

Step-by-step explanation:

3 0

2 years ago

Find the value of x in the triangle.

Studentka2010 [4]

Answer:

164

Step-by-step explanation:

Remember, everytriangle is 180 all together. So add what you see and subtract it from 180.

9+7= 16

180-16= 164

Hope it helps

5 0

2 years ago

Can anyone help me? I need an exact answer, please no guesses. Thanks in advance

tia_tia [17]

45 degrees
$160 - 115$

6 0

2 years ago

Read 2 more answers

What is the cotangent of Angle Q !! look at the pic for answer choices and the triangle

vfiekz [6]

√29/2 since cotangent deals the reciprocal of tangent and cotangent value is adjacent side/opposite side

8 0

2 years ago