Roger Louis Goodwin

You toss a coin as many as 3 times until head comes.You stop tossing when head comes and you win. What is the probability of winning?

What are some suggested books for an easy way to learn linear algebra and statistics?

When and how does Bayesian thinking trump frequentist-probability-guided approach in dealing with problems (e.g., Monty Hall)?

Is the mean of the set of values always greater than the minimum value?

How can I solve the question given in the comment?

What is the function of the word '=sum' at the beginning of an excel spreadsheet formula?

If an unbiased die is rolled, then what is the probability of getting a result as a multiple of 1?

What's the best way to win this game? Every day, each player chooses a number from 1 to 50. The number of points they earn is equal to the number / the number of people who chose that number.

What is the chance of a random string of letters (A-Z) of length 7 is an English word?

How dependable are random sample surveys?

The mean score for a normally distributed math test was 68% and the standard deviation was 8,2%. One student received a Z score of- 0.48. What was the percent score she received for the test?

Is a maximum likelihood estimator unbiased?

Is a degree in Engineering Mathematics/ Mathematical Engineering worth it and what can you do after undergrad? If you have the option of switching to Computer Information Systems, is it worth it?

How do I do a statistical analysis of survey data?

Is a career in financial mathematics dead in the USA nowadays?

What is the mean in a normal distribution? Is it necessary to correspond to an observed measurement of a sample?

Are univariate and multivariate logistic regression and Cox hazard models suitable statistic method to show independent prognostic factors for time to event analysis?

Why do you square the deviation of scores before square rooting them again when finding the standard deviation?

Is there any use or stochastic process in data science?

What does an asterisk mean in a boolean search?

I have seen research papers with eigenvalues and vectors “obtained” from DNA sequence comparisons. I made a square matrix of hamming distances but I cannot obtain the covariance matrix. I am new, can anyone point into potential reading sources?

Where should I start to brush up my mathematics in order to understand the formula used in the analysis algorithm?

In each of the three consecutive years, the cost of living is increased by 10%. What is the percentage increase over the three years?

How do limits apply to recursive sequences?

If the 2020 Census is anonymous and are only used to produce statistics, how does it remain anonymous? Are the statistics produced by people or computers?

Should we remove/replace outliers when we deal with a working production dataset? We had some outlier handling during training/testing.

Is it possible to have a 3-dimensional covariance matrix as opposed to your usual 2-dimensional matrix?

What is the difference between the classical approach and the p-value approach for the hypothesis test?

What are the 3 types of population distribution?

How do you find the median of grouped data in Excel?

How do you solve inequalities in one variable?

What z-score values form the boundaries for the middle 60% of a normal distribution?

What is the application of the standard deviation in statistics if it is known the data set does not come from a normal distribution?

What is the probability of rolling 4 on the die or heads on the coin? I say 7/12, but my teacher says add 1/6 and 1/2 together to get 2/3.

One set of data has a standard deviation of 0.6. Another set of data has a standard deviation of 10.2. What do the standard deviations tell us about these two data sets and how they differ from each other?

Can a line have a slope of 0?

Bag A contains 48 red balls, bag B contains 48 white balls, & bag C contains 24 red & 24 white balls. A bag is selected at random & one ball is taken at random from that bag. What is the probability of selecting a white ball using the naive Bayes?

How do I convert linguistic data obtained from questionnaire to numerical data?

What can you use to flip a coin when you don't have a coin?

How can I perform weighted linear regression with LASSO in R?

Two groups are interviewed a list of questions (N students = 200; N teachers = 20). How can I measure the differences of means of these two groups using SPSS?

A box contains 5 red marbles, 4 green marbles, and 6 yellow marbles. In how many ways can 9 marbles be chosen if there should be 3 balls of each color?

How can you tell if a Markov chain is irreducible?

The larger the population, the larger the sample must be. Is this true? If yes, why? If not, why not and how would you suggest a correct formulation regarding the size of the sample?

14 (d+e+f) = def, where d, e and f represent different digits larger than 0. What is the value of def?

How will you estimate covariance given noisy data and the mean?

What are the inference rules?

How do I learn data science and how do I start? Should I go for online courses or first improve my knowledge of statistics? I have no strong background in mathematics, statistics, and computer science.