




Card 8 / 13:
Suppose that you are performing the probability experiment of rolling one fair sixsided die. Let F be the event of rolling a four or a five. You are interested in how many times you need to roll the die in order to obtain the first four or five as the outcome.
p = probability of success (event F occurs)q = probability of failure (event F does not occur)

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Questions & Answers
A consumer advocate agency wants to estimate the mean repair cost of a washing machine. the agency randomly selects 40 repair cost and find the mean to be $100.00.The standards deviation is $17.50. Construct a 90% confidence interval for the mean.
pls I need understand this statistics very will is giving me problem
Sixtyfour third year high school students were given a standardized reading comprehension test. The mean and standard deviation obtained were 52.27 and 8.24, respectively. Is the mean significantly different from the population mean of 50? Use the 5% level of significance.
how do I find the modal class
look for the highest occuring number in the class
Kusi
the probability of an event occuring is defined as?
The probability of an even occurring is
expected event÷ event being cancelled
or
event occurring / event not occurring
Gokuna
Simple Bar Chart is a Diagram which shows the data values in form of horizontal bars. It shows categories along yaxis and values along xaxis. The xaxis displays above the bars and yaxis displays on left of the bars with the bars extending to the right side according to their values.
Muhammad
statistics is percentage only
the first word is chance for that we use percentages
muhammad
it is not at all that statistics is a percentage only
Shambhavi
how to calculate sample needed
mole of sample/mole ratio
or
Va
Vb
Gokuna
how to I solve for arithmetic mean
Yeah. for you to say.
James
how do I solve for arithmetic mean
please answer these questions
niharu
add all the data and divide by the number of data sets. For example, if test scores were 70, 60, 70, 80 the total is 280 and the total data sets referred to as N is 4. Therfore the mean or arthritmatic average is 70. I hope this helps.
Jim
*Tan A  Tan B = sin(AB)/CosA CosB ...
*2sinQ/Cos 3Q = tan 3Q  tan Q
what is subjective probability
how to calculate the Steadman rank correlation
David
what is sampling? i want to know about the definition of sampling.
Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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