*giving all the points i have on this ! what is the approximate area of the unshaded region under the standard normal curve below? use the portion of the standard normal table given to answer the questions. see photo’s attached. if you know it for sure you can rack up some points because i asked it 3 times!

A+b= 17, ab=70, find the value of |a-b|

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.