Answers created by Miles A.

• Back to user's profile
• Question #ab36d
  
• Question #b8f5a
  
• Would the nutrition levels and dietary habits (e.g. high fat diets, high cholesterol levels, protein or low carb diets, vegetarian, vegan, normal eater, etc.) of people in a survey be considered either Discrete or Continuous data?
  
• How do you find the Z score such that the area under the standard normal curve to the left is 0.93?
  
• Using the integral test, how do you show whether #sum 1/(n^2+1)# diverges or converges from n=1 to infinity?
  
• How do you know if #sumn/(e(n^2))# converges from 1 to infinity?
  
• How do you do the taylor series for expanding #1/(2+x^2)#, about a = 0 up to order n = 2?
  
• How do you find the derivative #1/(x^7 + 2)#?
  
• Question #9c722
  
• How do you use the convergence tests, determine whether the given series converges #sum (7-sin(n^2))/n^2+1# from n to infinity?
  
• How would you integrate #(x^2)(e^(x-1))#?
  
• How do I find the z-score to the following scores, sample n = 25, Mean M = 60, Standard Deviation s = 12?
  
• Question #a8f53
  
• Question #b1268
  
• How do you find the Taylor series for #ln(x)# about the value x=1?
  
• How do you find the derivative of #4sqrt(x-3) + x^5/(2x)#?
  
• How do you find the z-score for having area 0.07 to its right under the standard normal curve, that is, how do you find z0.07?
  
• Question #8ecf1
  
• How do you find the z-score for which 95% of the distribution's area lies between -z and z?
  
• What is the taylor series in sigma notation of: #sin^2(x)#?
  
• How do you differentiate #cos (y) -( x^2y^3) + 2y = pi#?
  
• What is the limit of #sin[(pix) /(2-3x)]# as x approaches infinity?
  
• A company with 500 employees wants to have its group health insurance premiums lowered. Here is one question from the questionnaire that every employee filled out and returned to the HR department: What have you done in the past year to improve your health? (circle all that apply) A. I have eaten healthier. B. I have exercised regularly. When the results were tabulated, the HR clerk reported that 140 people circled response A, 290 circled response B, and 50 people circled both responses A and B. What percent of company employees circled neither A nor B?
  
• How do you find the z-score for which 80% of the distribution's area lies between -z and z?
  
• You have studied the number of people waiting in line at your bank on Friday afternoon at 3 pm for many years, and have created a probability distribution for 0, 1, 2, 3, or 4 people in line. The probabilities are 0.1, 0.3, 0.4, 0.1, and 0.1, respectively. What is the probability that at most 3 people are in line at 3 pm on Friday afternoon?
  
• In a particular set of data,if you multiply each data value by 3 and then add 5, what effect will this have on the mean and standard deviation of the data set?
  
• How do you find the limit of #sin(x+4sinx)# as x approaches pi?
  
• What is the difference between a discrete uniform distribution and a continuous uniform distribution?
  
• How do you calculate marginal, joint, and conditional probabilities from a two-way table?
  
• How do you find the z-score for which 76% of the distribution's area lies between -z and z?
  
• What set of seven numbers have the same mean, median, and mode?
  
• What does the interquartile range tell us?
  
• Is the fuel efficiency (in miles per gallon) of an automobile a discrete or continuous variable?
  
• A line segment on the coordinate plane has endpoints (2,4) and (4,y) and the midpoint of the segment is point (3,7), What is the value of y?
  
• How do you solve the absolute value #4abs(3x+4) = 4x + 8#?
  
• What is the difference between using the pooled variance and the unpooled variance in a two-sample t test for means?
  
• How do you find the z score for which 12% of the distribution's area lies between z and -z?
  
• How do you calculate the area if the z score is .99, mean is 0 and standard deviation is 1?
  
• How do you find the z-score for having area 0.09?
  
• How do you prove #(sinx + cosxcotx)/cotx = secx#?
  
• How do you solve the proportion #17/5.2=f/13#?
  
• Is the distance that a person throws a baseball a discrete or continuous variable?
  
• How do you find an equation at a tangent line to the curve #y = (5+4x)^2# at point p = (7, 4)? y1=? y2=? ahh pleasee help...i am soo confused here :/?
  
• Use the standard normal distribution to find #P(z lt 1.96)#.
  
• What are the properties of a density curve in statistics?
  
• Is the time it takes to complete an exercise session a discrete or continuous data?
  
• What is the equation in point-slope form of the line given (4, –4) and (9, –1)?
  
• How do you solve #-3<x-3<0#?
  
• How do you find the domain and range for #y=x^3-x#?
  
• How do you find the z score corresponding to the 27th percentile?
  
• Human body temperatures are normally distributed with a mean of 98.20 and a standard deviation of 0.62, how do you find the z-score corresponding to a body temperature of 97.93?
  
• Given a normal distribution with u=20 and the standard deviation =2.5, how do you find the value of x that has (a) 25% of the distribution's area to the left and (b) 45% of the distributions area to the right?
  
• Using the integral test, how do you show whether #sum1/(n^2 - 1)# diverges or converges from n=4 to infinity?
  
• Consider a two-way table that summarizes age and ice cream preference. Of the children, 7 prefer vanilla, 12 prefer chocolate, and 3 prefer butter pecan. Of the adults, 10 prefer vanilla, 31 prefer chocolate, and 8 prefer butter pecan. Are the events "chocolate" and "child" independent? Why or why not?
  
• How do you write an equation of a line given Point: (7, 4); Slope: 6?
  
• How do you solve #abs(4d + 7) = 5#?
  
• How do you write an equation in standard form for a line which passes through (1, 3) and (4, 4)?