What is the probability of tossing 4 pennies and landing on heads twice and tails twice?
4C2(1/2)4 = 6/16 = 3/8
What is 4.5 meters in decimeter?
A decimetre is 1/10 of a metre so there are 10 decimetres to 1 metre.
4.5 metres = 45 decimetres
What is independent varible and a dependent variable?
An Independent Variable is the factor that is directly controlled or change. OR the part that you change.
A Dependent Variable is the part measured or what you are looking for in the experiment.
A constant is what never changes.
A Sample Size is the # of subjects tested or observed.
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If a coin is tossed 8 times what is the probability that it will land on heads exactly four times?
You can use a tree diagram or a binomial:
I choose a binomial:
8!/(4! * 4!) * .5^4 * .5 ^ 4
70 ways 8 flips can end in 4 v 4, * chance of 4 heads, * chance of 4 tails = .2734375 ~ 27.34 percent.
What are the possible outcomes for the number of tulips that could grow?
If we plant 5 tulip it could grow 3 only
What is the median of the numbers 445664878?
5.777778 or rounded to the nearest tenth decimal place 5.8
Eight tons equals how many pounds?
8 (short) tons is 16000 pounds while 8 tons (imperial) is 17920 pounds
and...................
1 ton = 1,000 kg. or 2,204.62262 lbs.
1 short ton = 907.1847 kg. or 2,000 lbs
1 long ton = 1,016.047 kg. or 2,240 lbs
So..........
8 tons = 8,000 kg. or 17,636.98096 lbs.
8 short tons = 7,257.4776 kg. or 16,000 lbs.
8 long tons = 8,128.376 kg. or 17,920 lbs.
What is probability you will pull a spade if you've already pulled a jack?
Since you didn't specify the suit of the jack, there are two possible answers. If the jack was a spade, the probability of drawing another spade is 12/51 or 23.5%. If the jack was NOT a spade, the probability of drawing a spade is 13/52 or 25%.
How many decimeters are there in 6113 meters?
There are 10 decimetres in one metre. Therefore, 6113 metres is equal to 6113 x 10 = 61130 decimetres.
How many combinations of numbers can occur when you roll 3 dicee?
Since there are 6 sides on each die, and you have 3 dice, you do 6x6x6. Which is 216 combinations.
How many times can you make 12 out of 3 one digit numbers?
Leaving out equivalent permutations, around 50:
1+2+9
1+3+8
1+4+7
1+5+6
2+2+8
2+3+7
2+4+6
2+5+5
3+3+6
3+4+5
4+4+4
1*2*6
1*3*4
2*2*3
4+9-1
5+9-2
5+8-1
6+9-3
6+8-2
6+7-1
7+9-4
7+8-3
7+7-2
8+9-5
8+8-4
9+9-6
21*6
22*3
2*61
3*41
31*4
0!*3!*2
0!*4!/2
1!*3!*2
1!*4!/2
0!*3!*2!
0!*4!/2!
1!*3!*2!
1!*4!/2!
3!*2/0!
3!*2/1!
3!*2!/0!
3!*2!/1!
4!/(2!*1)
4!/(2!*1!)
4!/(2!*0!)
5!/(5*2)
5!/(5*2!)
Why is it baldness occur most often in male?
Because it is always inherited, and hormone plays a big part.
How do you get statistic data about economy?
First decide what you want. The economy encompasses employment and unemployment, incomes and wealth, output and sales, international trade, investment, company formation etc. Within each one of these broad topics there are many hundreds (or thousands) of sets of data. Some of these may be relevant to the question at hand while others will not.
Most countries have a National Statistical Office or an Government Economic Department that will collect and publish data on their economy. Additionally, international and pan-national bodies like the United Nations, World Bank, International Monetary Fund (IMF), Oragnisation for Economic Cooperationand Development (OECD), Eurostat also collate and publish figures for member states. Most of these data are available over the internet.
If this is regarding probability, there are two cases:
E[Y] = (Summation) yp(y) in the discrete case. For example a fair dice has 1/6 probabilty for each event (of getting one value). so the sum is from 1 to 6 of yp(y). = 1(1/6) + 2(1/6) + 3(1/6) + 4(1/6) + 5(1/6) + 6(1/6) = (1/6) ( 1+2+3+4+5+6) = 21/6 = 3.5. So E[Y] for a fiar dice is 3.5
E[Y]= (intergral from -infinity to infinity) yf(y)dy , where f(y) is the density function for the continuous case. The integral must exits to be evaluated.
The difference between the two is basically the domain. If you dealing with integers you can use the discrete case, if you dealing with real numbers you have to use calculus.
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What is the probability of finding a T value greater than t.845 given that sample size is 95?
There is not enough information in the question to determine if the t-distribution is the appropriate model to use. If it is, then, with, a sample size of 95 the z-score for the Gaussian distribution is a suitable approximation. The probability is 0.199, approx.
Will something happen in September?
Some things that typically happen in September every year:
How many times does a digital cycle repeat in MHz?
MHz (megahertz) means millions of cycles per second. For example, if something has a frequency of 100 MHz, something will repeat at a rate of 100 million cycles per second.