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Biostatistics Statistics

12/07/22

From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

From a full deck of cards, you are dealt two cards. What is the probability of gettingi) A king and a Queen?ii) Two cards from the same suit?iii) A king and a Queen from the same suit?

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Biostatistics Statistics

12/06/22

Biostat/ stat --> Discrimination / calibrarion

what is the difference between calibration and discrimination in data analysis? an dhow do we measure them

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Biostatistics Statistics

12/06/22

From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

From a full deck of cards, you are dealt two cards. What is the probability of gettingi) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

Follows • 1

Answers •1

Biostatistics Math Statistics

11/28/22

Write out a proper interpretation for this confidence interval.

The Professor from Gilligan's Island made a six sided die, each side numbered from 1 to 6, from a palm tree and wants to calculate a 90% confidence interval for what the true proportion would be... more

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Biostatistics Math Statistics

11/28/22

What is the probability of obtaining a sample proportion less than 0.30?

It is known that the population proportion of BYU-Idaho students that go cross country skiing at least once winter semester is p = 0.38. Suppose a random sample of size n = 80 BYU-Idaho students is... more

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Biostatistics

11/14/22

Survival analysis

Suppose you were given survival data for subjects randomized to one of the two treatment groups. The variables included id, time (time to relapse in days), censor (1 if observing time to relapse, 0... more

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Biostatistics Statistics

11/04/22

What are the sample mean and margin of error?

50 random flights from D.C to New York City were selected and the resulting 95% confidence interval was (82.5, 88.7). What are the sample mean and margin of error?

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Biostatistics Statistics

11/04/22

How to find and calculate the info below

It is believed that the mean flight time from Seattle to New York City is 310 minutes. You want to test to determine if it is different from this. The population standard deviation is 10... more

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Biostatistics

10/27/22

1. A distribution of test scores follows the normal distribution with x̅ = 80, s = 12, n= 600. How many scores would you expect to find below a score of 90?

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Biostatistics Chemistry Statistics

10/21/22

how are detection limits related to standard deviations and why does this relationship exist?

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Biostatistics Statistics

10/15/22

What is the probability of obtaining a sample mean smaller than 1.97 ounces?

A small bag of Doritos has a mean weight of 2 ounces with a standard deviation of 0.1 ounces. A sample of 30 bags were randomly selected and their weight was measured. What is the probability of... more

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Biostatistics Statistics

10/15/22

What is the standard deviation of the distribution of all possible sample means?

The mean test score for all students in Math221 was 80 with a standard deviation of 14. If we took a random sample of 24 test scores, what is the standard deviation of the distribution of all... more

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Biostatistics Statistics

10/15/22

What can you conclude about the shape of the test score distribution?

The mean test score for exam 1 was 82, while the median was 88. What can you conclude about the shape of the test score distribution?

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Biostatistics Statistics

10/15/22

68-95-99.7 rule

Olympic 100 meter dash times (measured in seconds) this year are normally distributed and have a mean time μ = 10.5 and a standard deviation of 𝝈 = 0.5. Use the 68-95-99.7 rule to... more

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Biostatistics Math Science Chemistry

10/01/22

i lost 3/4 of a pound per day for 6 weeks

if during one leg of my coma marathon (feb-march 2020) I was bedridden (so not burning calories exercising) and well hydrated, calorie/nutritional intake was maybe 4-8 hundred/day in nutritional... more

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Biostatistics Biology Biochemistry

08/26/22

A researcher is trying to study a enzyme-catalyzed reaction in lab. while the reaction is fully saturated with substrate, what should he do to speed up the reaction..?

Options are :A) Add more enzymeB) Adjust the pH to 7.2C) Increase the temperatureD) Remove some substrate

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Biostatistics Epidemiology

08/25/22

Identify whether the texts in bold are discrete or continuous variables:

Unprecedented measures have been adopted to control the rapid spread of the ongoing COVID-19 epidemic in China. People’s adherence to control measures is affected by their knowledge, attitudes,... more

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Biostatistics Epidemiology

08/25/22

Identify whether the texts in bold are discrete or continuous variables:

It has been hypothesized that vitamin D is associated with androgen levels in men. We,therefore, aimed to evaluate whether vitamin D supplementation increases serum totaltestosterone (TT) levels in... more

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Biostatistics Biology Biochemistry Microbiology

06/19/22

Answer the question given in the description.

Design the experiment to describe the action of milk sugar digested into sour taste yoghurt.the experiment should have; Materials Procedures Conclusion Picture link which is similar to the... more

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Biostatistics Biology

06/12/22

What are some of the unhealthy dietary habits which lead to the lifestyle diseases?

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Biostatistics Usmle

05/28/22

USMLE statistics practice question

Note not typical USMLE question but demonstrates understanding of relationship between medical statistics essential for learning and USMLE (on all but heavily on step three)The prevalence of the... more

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Biostatistics Statistics Data Data Science

04/22/22

What statistical test should I use for this statistics report?

I will copy-paste my questionshttps://drive.google.com/file/d/1j1yRqwith0wlm1ool4pPQf-iw8_1JIw7/view?usp=sharingthis is the data im meant to use, im meant to use excel. tysm!I understand this is a... more

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Biostatistics Math Statistics Probability

04/12/22

Choose the procedure for estimating the mean difference.

Suppose that a scientist seeks to compare the ability of a new hand sanitizer to eliminate Pseudomonas aeruginosa bacteria against the hand sanitizer currently in use. Assume that the mean number... more

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Biostatistics Biology Statistics Morphometrics

03/14/22

statistical comparisons of frog jumps using morphometric measurements vs jump length

Is there a useful formula for using length and width measurements from frogs combined with their mass to obtain a single numerical value to use for statistical analysis against jump length? I was... more

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Biostatistics Statistics

02/06/22

A random sample of 390 married couples found that 290 had two or more personality preferences in common.

A random sample of 390 married couples found that 290 had two or more personality preferences in common. In another random sample of 558 married couples, it was found that only 38 had no... more

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From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

Biostat/ stat --> Discrimination / calibrarion

From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

Write out a proper interpretation for this confidence interval.

What is the probability of obtaining a sample proportion less than 0.30?

Survival analysis

What are the sample mean and margin of error?

How to find and calculate the info below

1. A distribution of test scores follows the normal distribution with x̅ = 80, s = 12, n= 600. How many scores would you expect to find below a score of 90?

how are detection limits related to standard deviations and why does this relationship exist?

What is the probability of obtaining a sample mean smaller than 1.97 ounces?

What is the standard deviation of the distribution of all possible sample means?

What can you conclude about the shape of the test score distribution?

68-95-99.7 rule

i lost 3/4 of a pound per day for 6 weeks

A researcher is trying to study a enzyme-catalyzed reaction in lab. while the reaction is fully saturated with substrate, what should he do to speed up the reaction..?

Identify whether the texts in bold are discrete or continuous variables:

Identify whether the texts in bold are discrete or continuous variables:

Answer the question given in the description.

What are some of the unhealthy dietary habits which lead to the lifestyle diseases?

USMLE statistics practice question

What statistical test should I use for this statistics report?

Choose the procedure for estimating the mean difference.

statistical comparisons of frog jumps using morphometric measurements vs jump length

A random sample of 390 married couples found that 290 had two or more personality preferences in common.

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