The mean value of X in the below table is : -5 -1 1 4 P(x) 0.09 0.25 0.15 0.24 0.27

Q: From the following data find out whether there is any significant relationship between gender and…

A:

Q: Find the mean value if y 1+x? between x-0 and x-1

A: Given function, y=11+x2

Q: Calculate missing frequencies.

A:

Q: Q2 At a site, the clepith of the sand layer was measured for 10 points, and the results were as…

A: x 1.55 2.41 2.91 3.26 3.41 3.73 3.84 3.99 4.02 4.13   The mean is given by…

Q: A running coach wants to know if participating in weekly running clubs significantly improves the…

A: Option a) is correct.

Q: A set of data items is normally distributed with a mean of 900 and a standard deviation of 30. Find…

A: The data item is normally distributed with     Mean, m = 900    Standard deviation, s = 30   Then,…

Q: 6. Given: N(78,2, 25.6) The x is at the 59.0 percentile, meaning 0.3900 to left of x. Find the…

A: Here, µ = 78.2 and σ = 25.6

Q: Find the area of the shaded region The graph to the right depicts IQ scores of adults, and those…

A: Given  μ=100, σ2=152 X~N(μ=100,σ2=152) P(X>98)= ?  Note: This probability value calculated from…

Q: Withdrawal symptoms may occur when a person using a painkiller suddenly stops using it. For a…

A: Given information: n = 1100 p=1%=1100=0.01

Q: Block 1 3 4 After 3 days 1356 1337 1344 1310 1348 After 6 days 1352 1355 1355 1324 1380

A:

Q: A z-score of z = −2.00 indicates a position in a distribution __________. above the mean by a…

A: A z-score essentially defines the standardized distribution of the variable that is considered to be…

Q: ❎♦️♦️♦️♦️✅❎❎

A: To find the indicated IQ score corresponding to the given area under the normal distribution curve,…

Q: ustration 9.3. Calculate the mean of the marks of 46 students given in Table 9.1. TABLE 9.1.…

A: Calculate mean of marks of 46 students

Q: Find the standard deviation x P(x) 00.06 1 0.06 2 0.32 3 0.28 40.28

A: Probability distribution table is given.

Q: Hw 14 X~N(12,3) Find the 87.7 percentile X.

A:

Q: Consider the following table. Compare the mean, median, and mode of all of the exam scores with the…

A: Mean is measure of central tendency which depends on all observation whereas median is only depends…

Q: Strength of concrete: The compressive strength, in kilopascals, was measured for concrete blocks…

A: The test statistic for the paired t-test is, t=d¯snwhere,d¯=∑din, defined di=xi-yiAnd…

Q: 3. The scores on the Wechsler Adult Intelligence Scale are approximately Normal with mean 100 and…

A: Given data:Mean Standard deviation Raw score The z-score formula is given by:​

Q: if var(2x) = 16 then the standard deviation of x= Answer: 2

A: The variance is calculated as Var(ax)=a2Var(x)

Q: A lake is famous for cutthroat trout.  Suppose a friend tells you that the average length of the…

A:

Q: The length of human pregnancies from conception to birth follows a Normal distribution with a mean…

A: Given that  μ=266,σ=16 X~Normal(μ=266,σ=16)

Q: 3) The following data visited a clinic on a particular day: A have Number of patients Waiting time…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Suppose X∼N(−4,4)X∼N-4,4. Between what xx values does 99.72%99.72% of the data lie?   The range of…

A: Solution

Q: None

A: To find the indicated IQ score corresponding to the shaded area under the normal distribution curve,…

Q: trucks were run at temperatures of 40°F and then again at 80°F. The emissions of each truck at the…

A: Here we need to test that the mean emissions are higher at 40*F. So it is a right tailed test.…

Q: A sample of 60 students at De Anza College was taken to estimate the average number of sodas…

A:

Q: For the following frequency distribution of exam scores, what is the lowest score on the exam? f…

A: The lowest class is 70-74

Q: Two hundred units of a particular

A: As given,  Three were 200 units of a particular component.  They subjected to an accelerated life…

Q: Mean (Average): 76 Population Standard Deviation, σ 19 Total Numbers, N 45       What score…

A:

Q: DRAW a graph (on accurate graph paper) of the mean rate of reaction against temperature (my graph…

A: Given information: The data represents the values of mean rate of reaction against temperature.

Q: days after pouring. The data are as follows. Can you conclude that the mean strength after three…

A: Given the data       Block       1 2 3 4 5 After 3 days 1341 1316 1352 1355 1327 After 6…

Q: To estimate the "average" temperature in a city (in degrees F), you measure the temperature at a…

A: The temperatures are given as follows. Temperature: x 70.5 70.1 75.9 65.7 72.7 72.2…

Q: Complete the following table From the frequency distribution, find the mean.  Interval Midpoint x…

A: From the provided information, Interval Midpoint x Frequency F Product xf 41.5 – 48.5…

Q: Given the following graph, where the mean is marked, which value best represents the z-score shown?

A: Here we have given the standard normal distribution curve. Here z is standard normal variate with…

Q: Mean (Average): 76 Population Standard Deviation, σ 19 Total Numbers, N 45       What score…

A: A \(z\)-score indicates the position of a data point in terms of its distance from the mean when…

Q: (a) Find the mean of p, where p is the proportion of people in the sample who experience withdrawal…

A: Let p be the proportion of people who experience withdrawal symptoms. Given that p = 0.02 and sample…