The name of a variable in the F programming language is a string that can contain uppercase letters, lowercase letters, digits or underscores. Further, the first charcter in the string must be a letter, either uppercase or lowercase or an underscore. If the name of a variable is determined by the fiirst nine characters, how many different variables can be named?

A producer of educational TV shows for gifted children wants to promote the claim that gifted children's scores on an analytical test increase the more the children watch their shows. In RStudio, run the following code to install and/or library the package "openintro". 1. Install.packages("openintro") # don't do this again if you already did this! 2. library(openintro) 3. gifted Delete the install line of code if you are in an RMD file so that it doesn't install every time you knit. The last line of code will access the dataset of that name. dataset named gifted gives information about test scores of gifted children on a standard analytical The test and the number of hours of educational TV these children watch. use the data set to make a model to predict score on analytical skills test (score") from hours of educational TV watched per week (edutv"). a. Make a scatterplot of "score" (y-axis) vs "edutv" (x-axis). Which plot is the scatterplot? Graph A Graph B Graph C Graph Do ỏ A 1954…

Users of the online system for a Bank are required to set a password that is 10 character-long. Each character can be a letter, a 1-digit number, or a symbol from the list: !, @, #, &, % How many passwords are possible if there is no distinction between upper case and lower case letters? (Not Case-sensitive) How many passwords are possible if the first and last digits have to be numbers?

The Sweet Encounter is a touring international candy festival. The festival's most popular product is rainbow lollipops. At one stop of the tour, the festival promoter took a sample of 72 of the products offered. He found that 29 of those products were rainbow lollipops. At that stop, 16 out of every 45 products offered were rainbow lollipops. For the festival promoter's sample, find and write with proper notation the sample proportion and population proportion of products offered that were rainbow lollipops. Write the proportions as decimals (not percentages) rounded to two decimal places. (a) Sample proportion: (Choose one) ▼ (b) Population proportion: (Choose one)

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