# Probabilty

Biased coin has a 0.4 probability of landing on tails. The random variable x, based on a single toss of the coin, is defined as follows: x=0 if heads appears; x=1 if tails appears. What Is the mean value of X?

Is it .
0.3
.4
.6
.5
.7

1. 👍 0
2. 👎 0
3. 👁 140
1. For each coin toss, the probability of x=1 is 0.4.

The mean value of X for n tries is :

(0.4(1)*n)/n = 0.4

1. 👍 0
2. 👎 0

## Similar Questions

Please check my work thanks!! A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6

asked by Matthew on March 6, 2013
2. ### Math

A coin is biased so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, what is the probability of getting 2 tails and 1 head? What do you mean by biased in probability?

asked by Jen on October 15, 2015
3. ### math

When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT Let X denote the total number of tails obtained in the

asked by Elizabeth on December 5, 2009
4. ### Maths

When you flip a biased coin the probability of getting a tail is 0.6. How many times would you expect to get tails if you flip the coin 320 times?

asked by Craig on April 6, 2019
5. ### finite math (probability

suppose you toss a coin 100 times and get 57 heads and 43 tails. Based on the results what is the probability that the next toss will be head.

asked by carol on June 17, 2014
1. ### Statistics

Suppose Tori has an unfair coin which lands on Tails with probability 0.28 when flipped. If she flips the coin 10 times, find each of the following: Question 5 options: P(No more than 3 Tails) P(Exactly 1 Tail) P(At least 5 Tails)

asked by Anonymous on June 2, 2013
2. ### math

Suppose that you toss a coin and roll a die. What is the probability of obtaining each of the following combinations? (Enter your answers as fractions.) P(tails and 5) = 1 P(tails or 1) = 2

asked by Anonymous on August 24, 2012

Which events are NOT independent? Landing on heads after tossing a coin and rolling a 3 on a 6- sided number cube Choosing a marble from a jar and landing on tails after tossing a coin Choosing a 5 from a deck of cards replacing

asked by Priscilla on May 14, 2015
4. ### Math

10. A coin is loaded so that the probability of heads is 0.55 and the probability of tails is 0.45, Suppose the coin is tossed twice and the results of tosses are independent. a.What is the probability of obtaining exactly two

asked by Renee on March 2, 2014
5. ### Math

You flip a coin 20 times and get tails 15 times you flip the coin 80 more times.what do you expect to happen to the experimental probability of getting tails as you increase the number of trials a. The experimental probability

asked by ghost on May 25, 2017
6. ### math

When you flip a biased coin the probability of getting a tail is 0.38. Find the probability of getting a head.

asked by kasey on January 28, 2020