PLEASE HELP
1. Which set of measurements is the MOST precise?
A. 0 g, 10 g, 0 g, 10 g
B. 3 g, 4 g, 3 g, 5 g
C. 5.3 g, 5.4 g, 5.3 g, 5.5 g
D. 5.35 g, 5.40 g, 5.35 g, 5.45 g

2. Suppose the expected value for the length of a meter stick is exactly one meter. A lab group checked the length of their meter stick and made the following measurements:
0.995 m, 0.998 m, 1.001 m, 1.000 m, 0.999 m

Which answer choice BEST describes these measurements?
A. accurate and precise
B. inaccurate and precise
C. accurate and imprecise
D. inaccurate and imprecise

3. Which of the following sets of measurements is the MOST precise?
A. 1 m, 2 m, 3 m, 4 m
B. 2.9 m, 3.0 m, 3.1 m, 3.2 m
C. 10 m, 20 m, 30 m, 40 m
D. 100 m, 200 m, 300 m, 400 m

4. Suppose you have a set of measurements.
What additional information would you need to describe the accuracy of the measurements?
A. the precision of the measurements
B. a second set of identical measurements
C. the expected value for the measurements
D. a set of measurements made with a different instrument

5.Which of these BEST describes the meaning of the term accuracy?
A. how likely a measurement is to be correct
B. how close a measurement is to what is expected
C. how likely it is that you will have to do an experiment again
D. how close one measurement is to other measurements of the same thing

6. What do scientists generally do if they are NOT sure what the expected value of a measurement should be?
A. use their best estimate for the true value
B. stop the experiment and measure something else
C. take the expected value from a different experiment
D. decide not to measure the accuracy of the experiment

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

its very big question plz make it small

in 2010, the population of the state of california is 37.29 × 10⁶

step-by-step explanation:

population of los angeles = 3.79 × 10⁶

population of california = 9.84 × population of los angeles

                                        = 9.84 × 3.79 × 10⁶

                                        = 37.2936 × 10⁶

                                        = 37.29 × 10⁶

∴ in 2010, the population of the state of california is 37.29 × 10⁶