Update README.md

Replace: 
"First basemen and older that second basemen" with "First basemen are older than second basemen"
"First basemen and taller than third basemen" with "First basemen are taller than third basemen"

Author: flegaspi700

1-Introduction/04-stats-and-probability/README.md

@@ -240,8 +240,8 @@ While this is definitely not exhaustive list of topics that exist within probabi
 ## 🚀 Challenge
 
 Use the sample code in the notebook to test other hypothesis that: 
-1. First basemen and older that second basemen
-2. First basemen and taller than third basemen
+1. First basemen are older than second basemen
+2. First basemen are taller than third basemen
 3. Shortstops are taller than second basemen
 
 ## [Post-lecture quiz](https://red-water-0103e7a0f.azurestaticapps.net/quiz/7)