DCL/ex3_2.html

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      <div data-datacamp-exercise data-lang='r' data-height =320><code data-type="pre-exercise-code">
    Y_tilde <- function(x){sum(x)/(length(x)-1)}
           </code>
           
           <code data-type="sample-code">
           # compute repeatedly estimates and store the results in est_consistent
           set.seed(123)
           
           
           # plot a histogram of est_biased
           
           
           # add a red vertical line at mu = 10
           
           
           </code>
           <code data-type="solution">
           # compute repeatedly estimates and store the results in est_consistent
           set.seed(123)
           est_consistent <- replicate(n = 10000, expr = Y_tilde(rnorm(1000, 10, 5)))
           
           # plot a histogram of est_consistent
           hist(est_consistent)
           
           # add a red vertical line at mu = 10
           abline(v = 10, col = "red")
           
           </code>
           <code data-type="sct">
           test_object("est_consistent")
           test_function("hist", args = "x")
           test_function("abline", args = c("v", "col"))
           </code></div>
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