Leap Year

Probability that a non-leap year selected at random contains 53 Sundays is?

The year MUST start on a Sunday. For a leap year, it can start on Saturday or Sunday.

In any period of 400 years there are 303 non-leap years, of which 43 begins and ends with a Sunday, and there are 97 leap years, of which 28 begins with a Saturday or a Sunday.

So the probability in a non-leap year is 43/303, or 14.2%.

And the probability in a leap year is 28/97, or 28.9%

What is probability that a leap years selected at random will contain 53 Sundays?

probability = 2/7 to be exact, 28/97 (about 28.87%)

What is the probability of Sundays in a leap year?

You are guaranteed to have Sundays in a leap year, so in probability terms that is 1.

What is the probability of not geeting a queen in a well shuffled deck of 52 playing cards?

If only one card is selected the probability is 12/13. If only one card is selected the probability is 12/13. If only one card is selected the probability is 12/13. If only one card is selected the probability is 12/13.

When jar contains 6 blue balls 8 red balls and 6 yellow balls 2 balls selected without replacement.what is probability that first ball is red and second ball is blue?

If the balls are selected at random, then the probability is 12/95.

What is the probability that a year selected at random is a leap year?

The probability that a year selected at random will be a leap year is 0.25.

What is the probability of a month of January having 5 Sundays?

If a 31-day month starts on a Friday, Saturday or Sunday it will have 5 Sundays; if not it will have 4. So the probability is 3/7.

What is probability sampling and non probability sampling?

In probability sampling,every item in the population has a known chance of being selected as a member.In non-probability sampling, the probability that any item in the population will be selected for a sample cannot be determined.

A deck of 52 cards contains four kings If one card is selected what is the probability that the card will be a kung?

52 cards divided by four kings.

What is the probability for a student in a dormitory to be selected if 10 percent of the students live in dormitories and a random sample of 100 is selected?

The probability is 10 percent.

What is the probability that a leap year selected at random will contain you 53 Sundays II 53 Thursdays?

A Leap year has 366 days. in which you have 52 weeks and 2 days. the 2 days may be sun,Mon mon,Tue tue,wed wed,THu, thu,Fri FRi,SAT sat,sun so you have 7 options among which 2 u can choose.. so the answer is 2/7 for having 53 Sundays. The probability of having 53 Thursdays is also 2/7. The probability of having either 53 Sundays or 53 Thursdays is 4/7.

What is difference between proportion and probability?

Proportion is the probability of a selected sample. probability is the true probability of all cases. If this is not what you are looking for then please specify.

What is non-probability sampling?

Non probability sampling is where the samples are not selected randomly.

What is the probability that the a dice 2 is drawn if the two dice total is 5?

The probability, when the 2-dice total is 5, that one of the two dice shows a two is 1/2. The probability that that die is selected is 1/4.

If a bag contains 20 chips labeled with the numbers 1 through 20 and one chip is selected at random. what is the probability that the chip has the number 17 on it?

The probability of selecting a 17 (or any number for that matter) is 1/20 or .05 or 5%.

A bag contains 30 cookies 9 vanilla 9 chocolate and 12 oatmeal. What is the probability that a chocolate is randomly selected?

9 out of 30, which simplifies to 3 out of 10.

What is the chance that a leap year selected at random will contain 52 Sundays?

Assuming you choose a leap year among a number of years that's a multiple of 2800, the exact probability is 5/7. Otherwise, it will be skewed. 71.13% (69/97)

What is the probability that if a month is selected from a calendar it has more than 28 days?

The probability is approx 15/16.

What is the probability of selecting a constant from the letters?

Until the letter is selected, it is a variable. Immediately after it is selected, the outcome is no longer a variable but a constant.

What is the probability of choosing a letter from the word probability?

Since the word "probability" contains only letters, then the probability of choosing a letter from the word "probability" is 1, i.e. it is certain to happen.

The probability of a person getting a cold is .7 What is the probability that 4 people if selected randomly will get a cold?

If the events can be considered independent then the probability is (0.7)4 = 0.24 approx.

In a classroom the students are 11 boys and 1 girl if one student is selected at random find the probability that the student is a girl?

There is only one girl out of 12 students so the probability that the girl is selected is 1/12.

What is the probability of 52 Sundays in a leap year?

A leap year has only 52 Sundays if it starts on any day of the week except Saturday or Sunday. The calendar repeats itself every 400 years, and every 400-year cycle includes 97 leap years. Of that 97, 15 start on a Sunday and 13 start on a Saturday. Therefore the probability of only 52 Sundays in a leap year is 69 out of 97 or about 71.13% (the other 28.87% have 53 Sundays).

What is the probability of rolling a six on a die?

The probability is 1 in 6 as there are 6 sides on a dice and an even chance of each side being selected.

What are the differences between probability sampling and non probability sampling?

In a probability sample, each unit has the same probability of being included in the sample. Equivalently, given a sample size, each sample of that size from the population has the same probability of being selected. This is not true for non-probability sampling.

Probability that a non leap year will have 53 Sunday is?

14.19% of all non-leap years have 53 Sundays.

What is the probability of a month in a year having 5 sundays?

It is a certainty. There will always be at least one month that will meet the requirement.

What is the probability of getting 2 numbers right in a lottery of 39 numbers?

The answer depends on how many numbers are selected.

A package contains 9 candy canes 6 of which are cracked If 2 are selected find the probability of getting no cracked candy canes?

Total possibilities = 9x8 Uncracked possibilities = 3x2 = 6/72 = 1/12

What is the probability when you take a card from a pack it will be a diamond?

There are 4 suits in a deck of cards; each suit has a probability of being selected of 1/4. So, probability of a diamond is 1/4 or 0.25.

What is the probability of choosing king or jack?

If you select 45 cards without replacement from a regular deck of playing cards, the probability is 1. For a single randomly selected card, the probability is 2/13.

A package contains 9 candy canes 6 which are cracked if 2 are selected find the probability of getting no cracked candy canes?

Probability of no cracked on 1st selection is 3/9, second is 2/8, so multiply 3/9 & 2/8 to get 6/72 or 1/12 or 0.0833.

When three cards are selected from the deck of cards what the the probability that all the selected are diamonds?

The probability of drawing three diamonds from a standard deck of 52 cards is (13 in 52) times (12 in 51) times (11 in 50), or 1716 in 132600, or about 0.01294.

Why the probability is have a specified chance to be selected and why the non probability does not have an equal of being selected?

Probability is the number of occurrences of a specific event divided by the total number of possible events. Suppose you took a multiple choice test with 4 possible answer's A, B, C, D. Only 1 of the 4 choices is correct; so the probability of correct is 1/4 and the probability of incorrect is 3/4. Most of the time the two probabilities will not be the same.

What is the probability that 20 substandard welds will be found out of 300 randomly selected samples knowing that 5 percent will be substandard?

Using the Poisson approximation, the probability is 0.0418

Approximately 10 percent of people are left-handed If two people are selected at random what is the probability that both are right handed?

The probability is approx 0.81

What is the key feature of probability sampling?

The key feature is that each sample of the given size has the same probability of being selected as the sample. Equivalently, each unit in the population has the same probability of being included in the sample.

An integer between 1 and 30 all inclusive is selected at random what is the probability that the integer selected is a multipleof 5?

6 out of 30 ie 20% or 0.2

Why will a density curve always give a probability of zero?

It will not. For the interval (x, x+dx) it may well give a non-zero probability. With a continuous distribution, the probability of any particular value is always 0. What the probability density function gives is the probability that the variable is NEAR the selected value.

A pencil case contains pencils of colours 3 black 1 green and 1 blue one pencil is selected without looking what is the probability?

There is a 60% chance you will choose a black, 20% chance of a green, and 20% chance of a blue.

What is the probability that a randomly selected man between age 55 and 64 does not have this disease?

The answer will depend on what the disease is.

How do you calculate relative frequency probability?

You carry out an experiment repeatedly. Then the number of times that the selected even occurs divided by the total number of trials is the relative probability for that event.

An envelope contains 10 cards.Three have girl's names and the rest have boy's names.What is the probability of picking a girl's name?

3/10 is the number probability... Not likely is the word probability....

Given eight students four of which are females if two students are selected at random without replacement what is the probability that both students are female?

The probability of selecting 1 female at random is 4/8 There are now 7 students, 3 of which are female so the probability of selecting another female is 3/7 The probability two randomly selected students are female is (4/8)x(3/7)= 3/14

If probability of reading newspaper a is .2 probability of reading newspaper b is .16 probability of reading newspaper c is .14.what is the probability that a person selected at random will read none?

The Probability of NOT reading newspaper a is .8 The Probability of NOT reading Newspaper b is .84 The probability of NOT reading Newspaper c is .86 Therefore, .8*.84*.86=0.57792=57.792%

What is a probability that the selected card will be an ace if one is missing?

The probability of drawing a Ace from a standard deck of 52 cards if one Ace is missing is 3 in 51, or about 0.05882. If the missing card is not an Ace, then the probability is 4 in 51, or about 0.07843.

A bag contains 8 red marbles 6 blue marbles and 9 green marbles If a marble is selected at random what is the probability of choosing a blue marble?

Number of different possible choices = 8 + 6 + 9 = 23 Number of available successful choices (blue marbles) = 6 Probability of success = 6/23 = 0.26087 = 26.087 % (rounded)

1 Using the relative frequency approach to probability if a country is selected at random what is the probability it will be in Europe?

1/7 or approximately .142 There are 7 continents and you are choosing only 1.

What is true of a random sample?

Every member in the population has the same probability of being in the sample.Or, equivalently, every set of the given sample size has the same probability of being selected.

What is the probability that a randomly selected person will be both over 50 and female?

The answer depends on the demography of the population from which the person is randomly selected. The answer depends on the demography of the population from which the person is randomly selected. The answer depends on the demography of the population from which the person is randomly selected. The answer depends on the demography of the population from which the person is randomly selected.

How does sampling becomes random?

When each member of the population has the same probability of being selected as a member of the sample.